201119819 六、發明說明 【發明所屬之技術領域】 本發明係關於一邊使得原木旋轉一邊藉由刀具切削原 木的切削方法以及刨木機。 【先前技術】 用於膠合板、單板疊層材等的板材之單板，通常是藉 由刨木機使得原木旋轉，用刀具進行切削而得到。 在該刨木機中，爲了防止原木在切削時所受到的力而 產生撓曲，並且提高成品率，需要將原木切削到儘可能小 的直徑爲止。 因此，申請人曾提出一種記載在日本特許第2796799 號公報中之刨木機。 該刨木機的槪略係顯示在第2 8圖的側面說明圖。 亦即，符號101是設有切削原木107用的刀具105等 的刨刀座。 刨刀座1 0 1與公知的刨木機相同，插入與設在刨刀座 1 01的陰螺紋（未圖示）吻合的第一陽螺紋103。 該第一陽螺紋103連接於使其旋轉之伺服電動機（未 圖示，以下稱爲“第一伺服電動機”）。 第一伺服電動機如後所述接受來自控制器（未圖示）之 信號，使得第一陽螺紋1 03正轉/逆轉，因此，刨刀座 1 0 1能夠相對於原木1 0 7之旋轉中心朝著箭頭方向往復移 動。 -5- 201119819 絕對旋轉式編碼器（未圖示）與第一伺服電動機連接， 用於檢測藉由第一伺服電動機的正轉/逆轉而被移動的構 件的相對於被任意設定的基準位置之位置。 藉由該絕對旋轉式編碼器能夠檢測設在刨刀座1 0 1之 刀具105的刀尖和原木107之旋轉中心（用主軸支持原木 時，爲主軸之旋轉中心）之間的距離。 符號105是設在刨刀座101的刀具，符號107是原 木，符號109是從原木107用刀具105切削下來的單板。 符號Π1是圓盤狀旋轉體，設在緊靠刀具105前的位 置，周圍設有多個突刺原木1 07外周面的突刺體，如後所 述，沿著旋轉的原木1 〇 7的軸中心線方向，有多個突刺體 呈並列配置。 第二伺服電動機113的動力藉由鏈條115傳遞，驅動 該圓盤狀旋轉體1 1 1以一定速度旋轉，如後所述，使得被 上述突刺體所突刺的原木1 07朝著箭頭方向旋轉。 符號1 17是刀尖桿（nose bar)，當藉由刀具105切削 原木107時，爲了減少單板109產生的背面裂縫等的裂 縫，在緊靠刀具105前的位置對原木107的外周面加壓。 符號1 1 9是第一輥，其沿軸中心線方向的長度爲能夠 與原木107的纖維方向大致整體碰觸的長度，藉由軸承 (未圖示）可從動旋轉自如地被支承在保持體（未圖示）上。 與藉由上述第一陽螺紋103之旋轉，而使刨刀座1〇1 進行移動的方式相同地，伺服電動機（未圖示，以下稱爲 “第三伺服電動機”）接受來自控制器（未圖示）的信號， -6- 201119819 藉由該第三伺服電動機使得第二陽螺紋121旋轉，而使該 保持體藉由第二陽螺紋1 2 1，如後所述一邊受到控制一邊 沿著水平方向進行移動。 與第一伺服電動機相同，絕對旋轉式編碼器（未圖示） 與第三伺服電動機連接，用於檢測原木1 0 7的旋轉中心和 在第一輥119的外周面在刀具105切削原木107時之與原 木1 07外周面接觸處（以下稱爲“接觸處”）之間的距離。 符號123是第二輥，係與第一輥119相同地，其沿軸 中心線方向的長度爲能夠與原木1 07的纖維方向大致整體 碰觸的長度，且比第一輥1 1 9直徑小，同樣從動自如地被 支承在與上述不同的另一保持體（未圖示）上。 伺服電動機（未圖示，以下稱爲“第四伺服電動機”） 接受來自控制器（未圖示）的信號，藉由該第四伺服電動機 使得第三陽螺紋1 2 5旋轉，上述另一保持體與支撐第一輥 1 1 9的保持體相同地，藉由上述第三陽螺紋1 25，如後所 述係一邊受到控制一邊沿著垂直方向進行移動。 絕對旋轉式編碼器（未圖示）與第四伺服電動機連接， 與第一輥1 1 9的情況相同地，用來檢測原木1 07的旋轉中 心和第二輥1 23的接觸處之間的距離。 再有，還設有用於檢測隨著原木1〇7旋轉而旋轉的第 二輥123的圓周速度的旋轉式編碼器（未圖示），將其資訊 資訊傳送給控制器。 以這種方式設置的刨刀座101、第一輥119以及第二 輥1 23的移動係按照以下的方式進行控制’而藉由刀具 201119819 105對原木107進行切削。 藉由與第一伺服電動機連接的絕對旋轉式編碼器可知 原木1 07的旋轉中心和刀具1 05的刀尖之間的距離r，藉 由設在第二輥123的旋轉式編碼器可得知原木107的圓周 速度X。 根據上述r及X在控制器計算原木1 07的每單位時間 的轉數（以下稱爲“轉數” ）n。 圓盤狀旋轉體111如上所述係以一定的速度被驅動旋 轉，因此，原木107的圓周速度X大致一定。 接著，在控制器中係根據轉數η的數値，向第一陽螺 紋1 03的伺服電動機發出信號使其作動，以使得原木1 〇7 每旋轉一周，刨刀座101朝著原木107移動的距離成都保 持爲一定。 其結果，刨刀座101將會移動，當然距離r的數値也 會依序地變小，可是，如上所述原木107的圓周速度X係 一定，與該變化的距離r的數値對應，刨刀座1〇1的移動 速度變快。 根據上述r及X的數値來決定刨刀座1〇1的移動速度 的控制器對於第二陽螺紋1 2 1的伺服電動機也發出如下所 述的使其作動的信號。 亦即’使得第三伺服電動機進行作動，以使得第一輥 119的接觸處位於隔著原木1〇7而與刀具105的刀尖成爲 對稱的位置’換言之’在第28圖中，從原木107的旋轉 中心向左側離開距離r的位置，正確地說，請參照第9 -8- 201119819 圖，係位於後述的阿基米德螺線曲線（以下稱爲“曲線”） 上，且與刨刀座101之向著原木107進行移動相對應地， 第一輥119也一邊保持著相對於上述刀尖的位置關係，一 邊向著原木107作水平移動。 其結果，即使藉由刀具105進行切削，使得原木107 的直徑依序地變小’第一輥1 1 9仍將繼續與原木1 0 7的周 面保持碰觸地進行移動。 同樣地，控制器對於第四伺服電動機也是使其進行作 動，而使得第二輥123的接觸處位於從原木107的旋轉中 心朝下方離開距離r的位置，同樣地，正確地說，係位於 成爲上述曲線上的位置，且與刨刀座101之向著原木107 側的移動相對應地，向著原木1 07作垂直移動。 在這種刨木機中，能防止原木因切削受到的力量而撓 曲，而可獲得所希望厚度的單板，同時，與使用主軸支承 原木的兩橫截面使其旋轉的情況相比，能切削原木直到很 小直徑爲止，可提高成品率。 〔專利文獻1〕日本特許第2796799號公報 可是’即使是這種刨木機，隨著刀具105切削原木 1〇7的進行’如僅顯示第28圖的主要部分的第29圖所 示’若繼續被切削的原木1 07的直徑變小的話，則刨刀座 101和第二輥I23將會相碰，或第—輥119和第二輥123 將會相碰’因此無法切削原木1 07直到比圖示更小的直 徑。 因此’存在著無法進一步提高成品率的問題。 -9 - 201119819 【發明內容】 本發明係爲了解決目前這樣的問題，其目的在於：提 供能以抵接構件來持續支撐原木，使得切削進展直至原木 直徑變得更小，而能夠提高成品率的原木的切削方法以及 刨木機。 爲了解決上述的問題，本發明在刨木機中，在支承旋 轉的原木的至少兩個抵接構件上，在各自沿著上述原木的 軸中心線方向上隔開間隔而從抵接面向著內方形成適當深 度的凹部，上述凹部的形狀是設成：在其中一方的抵接構 件的上述凹部，另一方的抵接構件的沒有形成上述凹部的 地方係與其相對，且能夠進入的形狀。 從開始切削原木起，或隨著切削進展，原木的直徑成 爲所定數値之後，就使上述兩個抵接構件成爲上述進入狀 態，來支承原木。 這些就是最主要的特徵。 以下說明本發明的效果。 本發明能夠以抵接構件來持續支承原木，使得切削進 展直到原木直徑變成更小爲止，因此具有提高成品率的優 點。 【實施方式】 以下係根據附圖來說明本發明之實施形態。 在第1圖中，符號101是與第19圖說明的刨刀座相 -10 - 201119819 同的刨刀座，同樣設有第一陽螺紋103，刀具105，圓盤 狀旋轉體1 1 1，電動機1 1 3，鏈條1 1 5，以及刀尖桿1 1 7。 符號3是一對主軸，藉由液壓缸（未圖示）的作動，在 待機位置和支承位置之間可往復移動自如，上述待機位置 係即使刀具1 〇 5接近以雙點鏈線所示的原木W的旋轉中 心也不會碰觸到原木W之與原木W分開的位置，上述支 承位置係分別與原木W的兩木材橫截面壓接的位置。 —對主軸3當位於支承位置時，可旋轉自如地支承原 木W，且如後所述，也可以藉由伺服電動機（未圖示，以 下稱爲“第五伺服電動機”）來驅動原木W進行旋轉，在 其被驅動旋轉時，轉速可以變更自如。 再者，一對主軸3中的其中一方係與用於檢測每單位 時間的旋轉數的旋轉式編碼器（未圖示）連接，可將旋轉數 資訊資訊輸入到後述的控制器79。 刀具1 05之與主軸3的軸中心線方向平行方向上的長 度係形成爲比原木W的纖維方向長度更長一些。 符號5是用於支承原木W周面的第一背撐裝置，其 構成方式如下。 符號7是在第2圖的左右方向兩側隔開間隔分別配置 的第一基台，第六伺服電動機9固定在各第一基台7上。 第六伺服電動機9也連接著絕對旋轉式編碼器（未圖 示）。 符號11是與各第六伺服電動機9相連接的第四陽螺 紋，爲了將第四陽螺紋保持在一定位置，可旋轉自如地插 -11 - 201119819 入於同樣地被固定在各第一基台7上的第一軸承13。 符號1 5是形成有螺紋的陰螺紋，其與第四陽螺紋i 1 吻吻合。 符號1 7是第一支承台，係在第2圖的左右方向兩側 隔開間隔分別配置的第二基台1 9上，上述第一支承台1 7 係被固定在由固定單元21a及滑動單元21b所構成的第一 線性軸承2 1的滑動單元2 1 b(參照第4圖）。藉此，第一支 承台17係可相對於第二基台19水平移動自如。 陰螺紋1 5在插入有第四陽螺紋n的狀態下，在第2 圖的左右方向，分別被固定在各第一支承台17的外側的 側面上。 在兩個第一支承台17之間，如第5圖所示，使得垂 直的第一鋼板17a和水平的第二鋼板17b分別以兩片互成 直角地固定形成截面成爲長方形的箱型安裝單元18，將 該箱型安裝單元18之沿著第2圖左右方向的兩端，分別 固定在各第一支承台17上的狀態進行設置。 在各第一支承台17的第1圖左右方向上之成爲主軸 3側的右側側面上，在第3圖的左右方向上之兩端部各設 有一個軸承23，在箱型安裝單元18的相同方向上的中央 部，在朝主軸3側突出固定的安裝單元17c上固定了兩個 軸承2 3。 上述軸承23之在於第3圖左側第一支承台17的軸承 2 3和中央部左側的軸承2 3之間，同樣地，在於右側第一 支承台1 7的軸承2 3和中央部右側的軸承2 3之間’分別 -12- 201119819 配置有第一軸25，上述兩個第一軸25係將直徑小的兩端 部25a插入到各軸承23，而被保持成可旋轉自如。 在第一軸2 5上，在如後所述之成爲切削中旋轉的原 木W的軸中心線方向的第2圖、第3圖的左右方向上隔 開間隔，並且其軸中心線是與原木W的軸中心線成爲同 一平面上的位置上，配置有多個第一背撐輥27，以使得 在後述的第一背撐體61所相對之處，形成有第一背撐體 g 6 1可進入的凹部。 藉由公知的鍵及鍵槽來固定各第一背撐輥27與第一 軸25，藉此，各第一背撐輥27和第一軸25係可成爲一 體旋轉自如。 此外，在兩個第一軸25的其中一方側，在第2圖左 側的第一軸25的右側端部附近，設有環狀構件29以及第 一齒輪31，爲了可以從動旋轉自如，藉由軸承（未圖示）設 置了與第一背撐輥2 7相同直徑且寬度較狹窄的環狀構件 隹 29’上述第一齒輪31比環狀構件29直徑小，可與環狀構 件29成一體旋轉。 在第一齒輪31上，係如第2圖所示，經由與第一齒 輪31嚙合的第二齒輪33，設有旋轉式編碼器35，用於檢 測環狀構件2 9的每單位時間的轉數，而向後述的控制器 79發送信號。 在第3圖中的雙點鏈線Z-Z是表示通過一對主軸3的 旋轉中心的假想線。 再者’在弟2圖左右方向上’在左側的第一軸25的 -13- 201119819 左端端部25a和相同方向右側的第一軸25的右端端部 25a上，（此處，僅僅說明後者），係如從第2圖的單點鏈 線G-G朝箭頭方向觀察時的局部截面說明圖的第8圖所 示，同樣地藉由鍵及鍵槽來固定各第一鏈輪37° 此外，在第一鋼板17a的下部’如第8圖所示’固定 著電動機39，在電動機39的旋轉軸上’在與上述同樣方 式固定的第二鏈輪41和第一鏈輪37之間掛設第一鏈條 43 ° 電動機39藉由第一鏈條43驅動第一背撐輥27朝向 第8圖所示箭頭方向旋轉，第一背撐輥27的圓周速度係 如後所述地設定爲與圓盤狀旋轉體1Π的圓周速度相同。 在上述構成方式中，藉由第六伺服電動機9使得第四 陽螺紋進行正轉/逆轉，就能夠使得第一支承台1 7及箱 型安裝單元18相對於第二基台19朝向第1圖箭頭所示的 水平方向進行往復移動。 此外，絕對旋轉式編碼器（未圖示）與第六伺服電動機 9相連接，該絕對旋轉式編碼器用於檢測該移動的第一支 承台1 7之在於上述水平方向上的位置（正確地說，如第9 圖所示，係與第一背撐輥27在於相同方向上的接觸處p 的位置）。 且將該位置資訊輸入到後述的控制器79。 位於第2圖下方的符號49是第二支承台，如第2 圖、第3圖、及第5圖所示，第二線性軸承51將固定單 元51a固定在第一支承台17，上述第二支承台49係固定 14- 201119819 在該第二線性軸承5 1的滑動單元5 1 b。藉由，第二支承 台49係可相對於第一支承台17上下移動自如。 在水平方向朝主軸3側突出的載置台53在第2圖左 右方向上係隔開間隔係有多個固定在第二支承台49上， 在各載置台53的下面，係如第5圖所示，固定著肋片 55，當受到朝著下方的力量時，可使得載置台53不易撓 曲。 此外，在各載置台53的上面，係如第2圖及第5圖 所示，固定著第三線性軸承57的固定單元57a。又，在 各第三線性軸承5 7的滑動單元5 7b上，係如第2圖所 示，設有一個板片59，其具有擴及全部滑動單元57b的 長度，且沿著第5圖左右方向的寬度即爲其寬度。藉由， 板片59係可在上述左右方向移動自如。 在板片5 9之與主軸3的相反側，係如第5圖及第6 圖所示，垂直地固定著側板5 9 a，在側板5 9 a上形成有可 與後述的第五陽螺紋吻吻合的陰螺紋（未圖示）。 又’在板片59上，係如第2圖、第5圖所示，固定 著如下所述的多個第一背撐體6 1。 各第一背撐體61的形狀係如第5圖所示，上端側面 61a爲水平’且在第2圖的左右方向上的寬度係比在相同 方向上鄰接的各第一背撐輥2 7的間隔小一些，在第5圖 中’相對於上側端面6 1 a，主軸3側端面6 1 b係形成爲垂 直’在主軸3的相反側，斜面61 c係形成爲朝左下方傾 斜。 -15- 201119819 上述第一背撐體61之在第2圖的左右方向上的位置 係設爲：與在相同方向上鄰接的各第一背撐輥27的各間 隔相對的位置，如後所述，設爲沿著第2圖的左右方向隔 開間隔的位置，當第一背撐體6 1相對於第一支承台1 7上 昇時，可使各第一背撐體61能夠進入上述各間隔內。 符號63係如第5圖、第6圖所示，是設有絕對旋轉 式編碼器的第七伺服電動機，分別被固定在第二支承台 49的主軸3側的面的兩處，與上述相同地用於檢測第一 背撐體6 1在水平方向上的位置。 符號63 a是與第七伺服電動機63相連接之可旋轉及 停止自如的第五陽螺紋。 第五陽螺紋63a插通在側板59a的上述陰螺紋。 在上述構成方式中，根據以後述方式設定的控制器 7 9向第七伺服電動機6 3發送的旋轉/停止作動信號，以 及從傳遞到控制器7 9之從絕對旋轉式編碼器得到的第一 背撐體61位置的信號，可使第五陽螺紋63 a進行正轉/ 反轉/停止作動。 其結果，相對於載置台53，能夠使得板片59，即第 一背撐體61朝第5圖的左右方向移動，以及在希望位置 停止自如。 符號65是在第2圖的左右方向上隔開間隔固定在第 —鋼板17a上的第二空壓缸，以如後所述方式來設定的壓 力的壓縮空氣經由軟管（未圖示）被連續供給，藉此，係如 第5圖所示’其第二活塞桿65a的前端係以一定的力量持 -16- 201119819 續與第二支承台49的上面碰觸》 符號67係如第7圖所示，爲第二鏈條，如後所述， 其兩端分別連接，其中間部掛設在以如後所述方式設置的 鏈輪75上。 亦即’安裝台77在第2圖的左右方向上的兩端的下 方部分別被固定在第一基台7，且在第〗圖的右側的面， 下方部係如第4圖所示’也是被固定在第二基台19上， 而第二鏈條67的一端是被固定在上述安裝台77的上部。 另一方面’弟一鏈條67的另一端係如第7圖所示， 被固定在第二支承台49的上端。 鏈輪75係藉由第二軸承73而可從動旋轉自如地被支 承在第二軸71上，該第二軸ή被固定在設在第二鋼板 17b上面的保持構件69上。 在此，預先說明藉由設有第二鏈條67而可使得第一 支承台1 7進行移動，以及與此相伴的第二支承台49的移 動。 如後所述’當藉由刀具1 〇 5切削原木W而得到厚度 T的單板時，在第1圖中，接受來自控制器79的信號， 以預先決定的移動速度’第~支承台17在第二基台19上 朝主軸3側進行移動。 於是，在第7圖中，第一支承台17係與箱型安裝單 元18 —起朝右方向遠離安裝台77。 另一方面’因爲第二鏈條67的長度一定，藉由上述 第一支承台17及箱型安裝單元18的移動，張力作用在第 -17- 201119819 二鏈條67，藉由第二線性軸承5 1而可上下移動自如地設 在第一鋼板17a上的第二支承台49係上昇達到與第一支 承台17的移動距離相等的距離。 該第二鏈條6 7的長度，係以：在切削原木W的過程 中之上述第一支承台17的移動中，相對於正在被切削的 原木W之各構件成爲以下所述的位置關係的方式來決定 的。 亦即，第9圖係表示從木材橫截面側觀看原木時之主 要構件的位置關係的示意圖，當藉由刀具105切削旋轉的 原木W以便得到厚度τ的單板γ時，刀具1〇5的刀尖通 過原木W的軌跡在第9圖中用雙點鏈線來表示，係成爲 假想的阿基米德螺線曲線（以下與上述相同，稱爲“曲 線”）。 第9圖中，位於曲線的最外側的實線表示在該時刻的 原本W的外周’各曲線的外側的線和內側的線的間隔就 成爲單板的厚度T。符號Q係表示原木W的旋轉中心。 調整第二鏈條67的長度’以使得第一背撐輥27的接 觸處P以及第一背撐體61的上側端面61a位於表示該原 木W外周的曲線上。 該位置關係’當改變單板厚度的情況下，需要改變以 第二鏈條67來連接的距離，爲此，係藉由適當手段使得 該距離可以改變自如。 例如’在安裝台7 7形成陰螺紋，在第二鏈條6 7的安 裝台7 7側的端部形成與該陰螺紋吻合的陽螺紋，可旋轉 201119819 自如地安裝該陽螺紋，可以利用陽螺紋向該陰螺紋的的旋 轉所產生的插入量來調整該距離。 另外，第二空壓缸65係設爲被注入一定壓力的壓縮 空氣的狀態。其壓力被設爲下述的數値：亦即，不會妨害 第一支承台17在第二基台19上朝主軸3側移動時，藉由 對第二鏈條67作用的張力，第二支承台49上升，並且， 如後所述，當結束切削原木W，而第一支承台17朝著離 開主軸3的方向移動，以便於進行切削下一個原木w的 情況下，若第二鏈條67的上述張力消失的話，則第二支 承台49能夠下降。 如上所述，從木材橫截面看，在圍繞著原木W的狀 態下，配置有：刨刀座1 0 1，第一背撐輥2 7以及第一背 撐體6 1。 控制器79係如下所述，構成爲可輸入各種資訊，並 根據上述資訊使得各構件進行作動。 本發明的實施例係如上所述的構成方式，此處將說明 其作動如下。 最初，操作者預先將藉由刀具1 05切削原木W所能 夠得到單板厚度T的資訊輸入到控制器79。 作爲初始狀態，係如上所述，預先調整第二鏈條67 的長度。 另一方面，預先將用第1圖的雙點鏈線來表示的原木 W的兩個木材橫截面的大致中央部夾持在一對主軸3之 間。 -19- 201119819 在該狀態下，使得一對主軸3旋轉，藉由刀具1 〇5開 始切削，由於原木W的形狀每根不同，因此，例如進行 如下方式的設定，使得上述各構件位於與開始旋轉的原木 W不會碰觸的充分分開的位置。 亦即，利用目視方式的手工作業，刀具1 05的位置到 達與被切削的原木充分分開的位置，將促使第一伺服電動 機作動的信號送向控制器7 9，使得刨刀座1 0 1移動到第1 圖的右側之待機位置。 另外，與刨刀座1 0 1的作動連動，從控制器7 9發出 促使第六伺服電動機9及第七伺服電動機63作動的信 號，與第9圖所示的情況相同地，第一背撐輥27的外周 面的接觸處P，第一背撐體6 1的上端側面6 1 a總是位於 從上述移動後的刀具105的刀尖位置起沿著原木W的旋 轉方向的上述曲線上。 因該作動所產生的第二鏈條6 7的作用，以及同樣地 與上述作動連動而從控制器7 9發出信號，促使第七伺服 電動機63作動，第一背撐體61也在主軸3的旋轉中心的 大致正下方，且在上述曲線的上述線上，到達距離原木的 外周面充分分開的位置上。 將上述的設定方式作爲初始狀態。 爲了從上述狀態開始切削原木W，若操作者將利用手 工作業的作動信號發送給控制器79的話，則控制器79將 會發出促使主軸3的伺服電動機、第一伺服電動機、第六 伺服電動機9、以及第七伺服電動機6 3進行作動的信 -20- 201119819 疏。 其結果，主軸3即原木W進行旋轉，因第 1〇3的旋轉，促使刨刀座ιοί朝著主軸3移動， 螺紋Π的旋轉，促使第一背撐裝置5朝著主軸2 在該刨刀座1 0 1的移動中，藉由第一伺服電 備的絕對旋轉式編碼器，依序地變化的刀具1 05 主軸3的旋轉中心之間的距離的値（以下稱爲“距 的資訊一直被輸入到控制器79中。 從被輸入距離L1資訊的控制器79將促使主 速變化的作動信號輸出到主軸3的伺服電動機 述，使得藉由主軸3旋轉的原木W之在被刀具 處的圓周速度與圓盤狀旋轉體111的圓周速度相 再者，如上所述，從主軸3的旋轉式編碼器 轉速度資訊輸入到控制器79。 根據該資訊，在控制器79計算主軸3旋轉 要的時間S 1，將藉由刀具1 〇 5切削原木W所得 的厚度設爲所希望的値T，發出促使第一伺服電 作動的信號，以使得每經時間S 1，就促使刨刀| 向第1圖中由主軸3所支承旋轉的原木W僅僅 T。 其結果，刨刀座1 0 1雖然進行移動，但其移 夠藉由設在第一伺服電動機的絕對旋轉式編碼器 可將該資訊傳遞給控制器79來進行控制。 另一方面，從控制器7 9也向第六伺服電動;f 一陽螺紋 因第四陽 i移動。 動機所具 的刀尖和 離 L1 ”) 軸3的轉 ，如上所 105切削 等。 也將其旋 一周所需 到的單板 動機進行 I 101 朝 移動距離 動距離能 來確認， 幾9發送 -21 - 201119819 促使其進行作動的信號’使得第一背撐裝置5每當主軸3 旋轉一周就朝向原木W僅僅移動距離T。 其結果，第一背撐裝置5進行移動，其移動距離能夠 藉由設在第六伺服電動機9的絕對旋轉式編碼器來確認， 可將該資訊傳遞給控制器79來進行控制。 另外，第一支承台17係構成第一背撐裝置5的一部 分，固定在第一支承台17的第一背撐輥27係朝向原木W 移動，第二支承台49則是如上述第二鏈條67那樣地，相 對於第一支承台1 7繼續上升。 再者，如上所述’第一支承台17朝第1圖所示的右 方向移動之結果，在該狀態下，第一背撐體61係從主軸 3的大致正下方位置朝右方向錯開。 但是，藉由將設在第六伺服電動機9的絕對旋轉式編 碼器的資訊傳遞給控制器79，促使第七伺服電動機63進 行作動，使第五陽螺紋63a旋轉，而促使第一背撐體61 朝向左側移動與第一支承台1 7之朝第1圖所示的右方向 的移動距離相等的距離。 該移動距離也可藉由設在第七伺服電動機63的絕對 旋轉式編碼器來進行確認。 其結果，在原木W切削中呈連續移動的刀具105的 刀尖，第一背撐輥27的接觸處P，以及第一背撐體61的 上側端面6 1 a會互相接近，隨時都處於第9圖所示曲線 上。 藉由上述這樣的各個構件的作動，利用刀具1 〇5依照 -22- 201119819 如下所述的方式來切削原木W。 原木W是自然物體，形狀各不相同，而且，在外周 部有凹凸。 爲此，在剛開始切削後，原木w在被主軸3支承其 木材橫截面的狀態下，受到從圓盤狀旋轉體111及主軸3 傳遞來的力量而進行旋轉，藉由刀具105進行斷續性的切 削，可以一定的厚度獲得不連續狀的單板Y。 這時的原木w的外周係與第9圖作爲原木W外周所 示的實線不同，亦即，係成爲在實線的旋轉方向上，有許 多個局部性地凹向內側的地方的狀態。 因此，第一背撐輥27及第一背撐體6 1係一邊斷續地 與旋轉的原木W的外周面相碰，一邊支承該原木W» 若上述切削進一步進行的話，則會如與第7圖相對應 的第10圖所示，被主軸3所支承的原木W大致成爲圓柱 形，而能得到連續成帶狀的單板Y。 在該狀態下，由於上述的構成方式，第一背撐輥27 的接觸處p係位在相對於原木w呈大致水平的位置上， 第一背撐體61係位在相對於原木W大致正下方的位置， 分別與原木W的外周面持續性地相接觸。 在第10圖至第14圖中’爲方便起見，設在创刀座 1 〇 1上的構件僅僅顯示出刀具1 05， 刀尖桿1 1 7，以及圓 盤狀旋轉體U1。 更進一步繼續切削的話，則如第1 1圖所示，如果由 與第一伺服電動機連接的絕對旋轉式編碼器檢測到··原木 -23- 201119819 »^o 削値 切的 行度 進程 續種 繼這 若的 ， 3 下軸 態主 狀到 該觸 在碰 徑 5 ο 直 1 的具 W 刀 於將 近號 接信 會該 將則 會發送到控制器79。 於是，控制器79就對於主軸3的油壓缸（未圖示）發 出促使主軸3各自移動到與原木W分開的待機位置的作 動信號。 其結果，原木W僅由圓盤狀旋轉體1 1 1、第一背撐輥 27以及第一背撐體61所支承，利用來自圓盤狀旋轉體 1 1 1的力量而旋轉，繼續由刀具1 05進行切削。 在該狀態的切削中，如上所述，因主軸3離開了原木 W，因此能夠從第1 1圖的狀態進一步繼續進行切削。 隨著繼續切削，同樣地在第11圖中，朝著原木W的 旋轉中心，從右側，係有刨刀座1 0 1即刀具1 0 5及圓盤狀 旋轉體1 1 1進行移動，而從左側，係有第一背撐輥2 7進 行移動，從下側’係有第一背撐體61進行移動。 這時’刀具105的刀尖’第一背撐輥27的接觸處 P’以及第一背撑體61的上側端面61a互相更爲接近，隨 時都處於第9圖所示的曲線上。 在該階段的切削中’主軸3係離開原木W，因此，不 能使用主軸3來檢測原木W旋轉一周所需要的時間。 於是’如上所述，使用與原木W的外周面相接觸的 從動旋轉的環狀構件2 9 ’代替主軸3來檢測上述時間。 亦即’將藉由旋轉編碼器35來檢測的環狀構件29之 每單位時間的旋轉數’以及從與第六伺服電動機9連接的 -24- 201119819201119819 VI. Description of the Invention [Technical Field] The present invention relates to a cutting method and a planer for cutting logs by rotating a log while rotating the logs. [Prior Art] A veneer for a sheet of a plywood, a veneer laminate or the like is usually obtained by rotating a log by a planer and cutting it with a cutter. In the planer, in order to prevent deflection of the logs due to the force received during cutting, and to improve the yield, it is necessary to cut the logs to the smallest possible diameter. Therefore, the applicant has proposed a planer disclosed in Japanese Patent No. 2796799. The outline of the planer is shown in the side view of Fig. 28. That is, reference numeral 101 is a planer holder provided with a cutter 105 or the like for cutting logs 107. The planer holder 101 is inserted into the first male thread 103 which is fitted to the female thread (not shown) provided on the planer holder 101 in the same manner as the known planer. The first male screw 103 is connected to a servo motor (not shown, hereinafter referred to as "first servo motor") for rotating it. The first servo motor receives a signal from a controller (not shown) as described later, so that the first male thread 103 rotates/reverses, so that the planer seat 101 can be rotated toward the center of rotation of the log 107. Reciprocating in the direction of the arrow. -5- 201119819 An absolute rotary encoder (not shown) is connected to the first servo motor for detecting the position of the member moved by the forward/reverse rotation of the first servo motor with respect to the arbitrarily set reference position position. By this absolute rotary encoder, it is possible to detect the distance between the cutting edge of the tool 105 of the planer holder 101 and the center of rotation of the log 107 (the center of rotation of the spindle when the spindle is supported by the spindle). Reference numeral 105 is a cutter provided on the planer holder 101, reference numeral 107 is a log, and reference numeral 109 is a veneer cut from the log 107 by the cutter 105. The symbol Π1 is a disk-shaped rotating body provided at a position immediately before the cutter 105, and is provided with a plurality of spurs of the outer peripheral surface of the spur logs 107, as will be described later, along the axis center of the rotating logs 1 〇7 In the line direction, a plurality of spurs are arranged side by side. The power of the second servo motor 113 is transmitted by the chain 115, and the disk-shaped rotating body 11 1 is driven to rotate at a constant speed, and as will be described later, the log 107 stabbed by the above-mentioned spur body is rotated in the direction of the arrow. The symbol 1 17 is a nose bar. When the log 107 is cut by the cutter 105, in order to reduce the crack of the back crack or the like generated by the veneer 109, the outer peripheral surface of the log 107 is added at a position immediately before the cutter 105. Pressure. Reference numeral 1 19 is a first roller whose length in the direction of the axis center line is a length which can be substantially in contact with the fiber direction of the log 107, and is rotatably supported by a bearing (not shown). Body (not shown). Similarly to the manner in which the planer holder 1〇1 is moved by the rotation of the first male screw 103, a servo motor (not shown, hereinafter referred to as "third servo motor") is received from the controller (not shown). Signal -6- 201119819 by the third servo motor rotating the second male thread 121, so that the holding body is controlled by the second male thread 1 2 1 as described later Move in the direction. Like the first servo motor, an absolute rotary encoder (not shown) is connected to the third servo motor for detecting the center of rotation of the log 107 and when the log 107 is cut by the cutter 105 on the outer peripheral surface of the first roller 119. The distance between the contact with the outer peripheral surface of the log 1 07 (hereinafter referred to as the "contact"). Reference numeral 123 is a second roller which, like the first roller 119, has a length in the direction of the center line of the shaft which is substantially in contact with the fiber direction of the log 107, and is smaller than the diameter of the first roller 1 19 It is also freely supported on another holding body (not shown) different from the above. A servo motor (not shown, hereinafter referred to as "fourth servo motor") receives a signal from a controller (not shown), and the third servo motor rotates the third male screw 1 2 5 by the fourth servo motor. The body is moved in the vertical direction by the third male screw 125 as described later, in the same manner as the holder for supporting the first roller 119. An absolute rotary encoder (not shown) is connected to the fourth servo motor, and is used to detect the relationship between the center of rotation of the log 107 and the contact of the second roller 1 23, as in the case of the first roller 1 19 distance. Further, a rotary encoder (not shown) for detecting the peripheral speed of the second roller 123 which rotates in accordance with the rotation of the log 1〇7 is provided, and the information information is transmitted to the controller. The movement of the planer holder 101, the first roller 119, and the second roller 133 provided in this manner is controlled in the following manner, and the log 107 is cut by the cutter 201119819 105. By the absolute rotary encoder connected to the first servo motor, the distance r between the center of rotation of the log 107 and the tip of the tool 105 can be known by the rotary encoder provided on the second roller 123. The circumferential speed X of the log 107. The number of revolutions per unit time (hereinafter referred to as "number of revolutions") n of the logs 1 07 is calculated by the controller based on the above r and X. Since the disk-shaped rotating body 111 is driven to rotate at a constant speed as described above, the circumferential speed X of the log 107 is substantially constant. Then, in the controller, according to the number of revolutions η, the servo motor of the first male thread 103 is signaled to operate, so that the planer 101 moves toward the log 107 every one rotation of the log 1 〇7. It is kept to a certain distance from Chengdu. As a result, the planer holder 101 will move, and of course, the number of distances r will be gradually reduced. However, as described above, the circumferential speed X of the log 107 is constant, corresponding to the number of the changed distance r, the planer The movement speed of the seat 1〇1 becomes faster. The controller that determines the moving speed of the planer holder 1〇1 based on the number of the above-mentioned r and X also issues a signal as described below for the servo motor of the second male screw 1 2 1 . That is, 'the third servo motor is actuated such that the contact of the first roller 119 is located at a position symmetrical with the cutting edge of the cutter 105 across the log 1〇7, in other words, in the 28th figure, from the log 107 The center of rotation is separated from the left side by the distance r. To be correct, please refer to the figure 9-8-201119819, which is located on the Archimedes spiral curve (hereinafter referred to as "curve") described later, and with the planer holder. In response to the movement of the log 107, the first roller 119 is horizontally moved toward the log 107 while maintaining the positional relationship with respect to the blade edge. As a result, even if the cutting is performed by the cutter 105, the diameter of the log 107 is sequentially reduced. The first roller 1 19 will continue to move in contact with the circumference of the log 107. Similarly, the controller also operates the fourth servo motor such that the contact of the second roller 123 is located at a position away from the center of rotation of the log 107 by a distance r, and, as such, correctly The position on the above curve is vertically moved toward the log 107 in accordance with the movement of the planer holder 101 toward the side of the log 107. In such a planer, it is possible to prevent the logs from being deflected by the force of the cutting, and to obtain a veneer of a desired thickness, and at the same time, compared with the case where the two cross-sections of the main shaft supporting the logs are rotated. Cutting logs until they are small enough to increase yield. [Patent Document 1] Japanese Patent No. 2796799, "Even in this planer, as the cutting tool 1 is cut by the cutter 105", as shown in Fig. 29 showing only the main portion of Fig. 28 If the diameter of the log 107 to be cut becomes smaller, the planer holder 101 and the second roller I23 will collide, or the first roller 119 and the second roller 123 will collide each other 'so that the log cannot be cut until the ratio is 07. Show a smaller diameter. Therefore, there is a problem that the yield cannot be further improved. -9 - 201119819 SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the present invention, and an object thereof is to provide a support member capable of continuously supporting logs so that the cutting progresses until the log diameter becomes smaller, and the yield can be improved. Cutting method of logs and planer. In order to solve the above problems, in the planer, at least two abutting members supporting the rotating logs are spaced apart from each other along the axial center line direction of the logs. The concave portion is formed to have a suitable depth, and the recessed portion has a shape in which the concave portion of the one of the abutting members is formed, and the other portion of the abutting member that is not formed with the concave portion is formed to be able to enter. From the start of cutting the logs, or as the cutting progresses, the diameter of the logs becomes a predetermined number, and the two abutting members are brought into the above-described entry state to support the logs. These are the main features. The effects of the present invention will be described below. The present invention can continue to support the logs with the abutting members, so that the cutting progresses until the diameter of the logs becomes smaller, so that the yield is improved. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In Fig. 1, reference numeral 101 is a planer holder which is the same as the planer stage 10 - 201119819 described in Fig. 19, and is also provided with a first male thread 103, a cutter 105, a disk-shaped rotating body 1 1 1, and an electric motor 1 1 3, chain 1 1 5, and tip 1 1 7 . Reference numeral 3 is a pair of main shafts which are reciprocally movable between a standby position and a support position by actuation of a hydraulic cylinder (not shown) which is close to the double-point chain line even if the cutter 1 〇 5 approaches The center of rotation of the log W does not touch the position of the log W which is separated from the log W, and the above-mentioned support position is a position where the cross-section of the two woods of the log W is respectively crimped. - When the spindle 3 is positioned at the support position, the log W can be rotatably supported, and the log W can be driven by a servo motor (not shown, hereinafter referred to as "fifth servo motor") as will be described later. Rotation, when it is driven to rotate, the speed can be changed freely. Further, one of the pair of main shafts 3 is connected to a rotary encoder (not shown) for detecting the number of revolutions per unit time, and the rotation number information information can be input to the controller 79 to be described later. The length of the cutter 105 in the direction parallel to the axial center line direction of the main shaft 3 is formed to be longer than the fiber direction length of the log W. Reference numeral 5 is a first backing device for supporting the circumferential surface of the log W, and the configuration is as follows. Reference numeral 7 is a first base arranged at intervals on both sides in the left-right direction of Fig. 2, and a sixth servo motor 9 is fixed to each of the first bases 7. The sixth servo motor 9 is also connected to an absolute rotary encoder (not shown). Reference numeral 11 is a fourth male screw that is connected to each of the sixth servo motors 9. In order to hold the fourth male screw at a fixed position, the rotatably inserted -11 - 201119819 is similarly fixed to each of the first base stations. The first bearing 13 on the 7th. Symbol 15 is a female thread formed with a thread that coincides with the fourth male thread i 1 . Reference numeral 17 is a first support base which is placed on the second base 19 disposed at intervals on both sides in the left-right direction of Fig. 2, and the first support base 7 is fixed to the fixed unit 21a and slides. The sliding unit 2 1 b of the first linear bearing 21 formed by the unit 21b (see Fig. 4). Thereby, the first support base 17 is horizontally movable relative to the second base station 19. The female screw 15 is fixed to the outer side surface of each of the first support bases 17 in the left-right direction of Fig. 2 in a state in which the fourth male screw n is inserted. Between the two first support tables 17, as shown in Fig. 5, the vertical first steel plate 17a and the horizontal second steel plate 17b are fixed at right angles to each other to form a box-shaped mounting unit having a rectangular cross section. 18, the two ends of the box-shaped mounting unit 18 are fixed to the respective first support bases 17 along the left and right directions in the second drawing. One bearing 23 is provided at each of both end portions in the left-right direction of FIG. 3 on the right side surface on the side of the main shaft 3 in the left-right direction of the first support table 17 in the first drawing, and is provided in the box-mounted unit 18 In the center portion in the same direction, two bearings 23 are fixed to the mounting unit 17c that is protruded and fixed toward the main shaft 3 side. The bearing 23 is located between the bearing 2 3 of the first support base 17 on the left side of FIG. 3 and the bearing 2 3 of the left side of the center portion, and similarly, the bearing 2 3 of the right first support base 17 and the bearing of the right side of the center portion. Between 2 and 3, respectively, the first shaft 25 is disposed, and the two first shafts 25 are inserted into the respective bearings 23, and are held rotatably. In the first axis 25, the left and right directions of the second and third figures of the log W in the axial direction of the log W which is rotated as described later are spaced apart, and the axis center line is the same as the log. The shaft center line of W is located on the same plane, and a plurality of first backing rolls 27 are disposed so that the first back support body g 6 1 is formed at a position opposite to the first back support body 61 to be described later. Accessible recess. Each of the first backing rolls 27 and the first shaft 25 is fixed by a known key and a key groove, whereby each of the first backing rolls 27 and the first shaft 25 can be integrally rotatable. Further, on one of the two first shafts 25, an annular member 29 and a first gear 31 are provided in the vicinity of the right end portion of the first shaft 25 on the left side of the second figure, so that it can be freely rotated in order to be driven. An annular member ' 29 ′ having the same diameter as the first backing roller 27 and having a narrow width is provided by a bearing (not shown). The first gear 31 has a smaller diameter than the annular member 29 and can be formed with the annular member 29 . One rotation. On the first gear 31, as shown in Fig. 2, a rotary encoder 35 is provided via the second gear 33 meshing with the first gear 31 for detecting the revolution per unit time of the annular member 29. The number is sent to the controller 79, which will be described later. The two-dot chain line Z-Z in Fig. 3 is an imaginary line indicating the center of rotation of the pair of main shafts 3. Further, 'in the left-right direction of the drawing 2', on the left end portion 25a of the first shaft 25 on the left side and the right end portion 25a of the first shaft 25 on the right side in the same direction (here, only the latter is explained) As shown in Fig. 8 of the partial cross-sectional explanatory view when viewed from the single-point chain line GG of Fig. 2 in the direction of the arrow, the first sprocket 37 is fixed by the key and the key groove. The lower portion of the first steel plate 17a is attached to the second sprocket 41 and the first sprocket 37 fixed in the same manner as described above, as shown in Fig. 8 'fixing the motor 39 on the rotating shaft of the motor 39'. A chain 43 ° motor 39 is driven by the first chain 43 to drive the first backing roller 27 to rotate in the direction of the arrow shown in Fig. 8, and the peripheral speed of the first backing roller 27 is set to be disc-shaped as will be described later. The circumferential speed of the rotating body 1Π is the same. In the above configuration, the first support stage 17 and the box-mounted unit 18 can be oriented toward the first stage with respect to the second base 19 by the sixth servo motor 9 causing the fourth male screw to rotate forward/reversely. The horizontal direction indicated by the arrow reciprocates. Further, an absolute rotary encoder (not shown) is connected to the sixth servo motor 9, and the absolute rotary encoder is for detecting the position of the first support table 7 of the movement in the horizontal direction (correctly speaking As shown in Fig. 9, the position of the contact p in the same direction as the first backing roll 27 is). This position information is input to the controller 79 to be described later. Reference numeral 49 located at the bottom of Fig. 2 is a second support table. As shown in Figs. 2, 3, and 5, the second linear bearing 51 fixes the fixing unit 51a to the first support table 17, the second The support table 49 is fixed 14-201119819 in the sliding unit 5 1 b of the second linear bearing 51. By the second support table 49, it is possible to move up and down with respect to the first support table 17. The mounting table 53 that protrudes toward the main shaft 3 in the horizontal direction is fixed to the second support base 49 at intervals in the left-right direction of the second drawing, and is placed on the lower surface of each of the mounting bases 53 as shown in Fig. 5. It is shown that the rib 55 is fixed, and when the force is directed downward, the mounting table 53 can be made less flexible. Further, on the upper surface of each of the mounting tables 53, as shown in Figs. 2 and 5, the fixing unit 57a of the third linear bearing 57 is fixed. Further, on the sliding unit 57b of each of the third linear bearings 57, as shown in Fig. 2, a plate 59 having a length extending to the entire sliding unit 57b and extending along the fifth figure is provided. The width of the direction is its width. The plate piece 59 can be moved freely in the above-described left and right direction. On the side opposite to the main shaft 3 of the plate 59, as shown in Figs. 5 and 6, the side plate 59a is vertically fixed, and a fifth male thread which can be described later is formed on the side plate 59a. The female thread of the kiss fits (not shown). Further, on the sheet piece 59, as shown in Fig. 2 and Fig. 5, a plurality of first back support bodies 6 1 as described below are fixed. The shape of each of the first back support bodies 61 is as shown in Fig. 5, and the upper end side surface 61a is horizontal 'and the width in the left-right direction of Fig. 2 is larger than the first back support rolls 27 which are adjacent in the same direction. The interval is smaller. In Fig. 5, 'the upper end surface 6 1 b is formed perpendicular to the upper end surface 6 1 a on the opposite side of the main shaft 3, and the inclined surface 61 c is formed to be inclined downward toward the left. -15-201119819 The position of the first back support body 61 in the left-right direction of FIG. 2 is set to a position opposite to each interval of each of the first backing rolls 27 adjacent in the same direction, as follows. It is assumed that the first back support body 61 can be moved into the above position when the first back support body 61 is raised relative to the first support base 17 at a position spaced apart from each other in the left-right direction of FIG. 2 . Within the interval. Symbol 63 is a seventh servo motor provided with an absolute rotary encoder as shown in Figs. 5 and 6, and is fixed to two surfaces of the second support base 49 on the side of the main shaft 3, respectively. It is used to detect the position of the first back support body 61 in the horizontal direction. Symbol 63a is a fifth male thread which is rotatable and slidable in connection with the seventh servo motor 63. The fifth male screw 63a is inserted into the female screw of the side plate 59a. In the above configuration, the rotation/stop actuation signal transmitted from the controller 7 to the seventh servo motor 63, which is set in the manner described later, and the first rotation from the absolute rotary encoder transmitted to the controller 79 are obtained. The signal of the position of the back support 61 allows the fifth male screw 63a to perform forward/reverse/stop operation. As a result, with respect to the mounting table 53, the sheet piece 59, that is, the first backing support body 61 can be moved in the left-right direction of Fig. 5 and can be stopped at a desired position. Reference numeral 65 is a second air cylinder fixed to the first steel plate 17a at intervals in the left-right direction of Fig. 2, and compressed air of a pressure set as described later is passed through a hose (not shown). Continuous supply, whereby, as shown in Fig. 5, the front end of the second piston rod 65a is held with a certain force -16-201119819 continues to touch the upper surface of the second support table 49. Symbol 67 is the seventh As shown in the figure, the second chain is connected at its both ends as described later, and its intermediate portion is hung on the sprocket 75 provided in a manner as will be described later. That is, the lower portion of the both ends of the mounting table 77 in the left-right direction of Fig. 2 is fixed to the first base 7, and the lower portion is on the right side of the figure, and the lower portion is as shown in Fig. 4 It is fixed to the second base 19, and one end of the second chain 67 is fixed to the upper portion of the mounting base 77. On the other hand, the other end of the brother-chain 37 is fixed to the upper end of the second support base 49 as shown in Fig. 7. The sprocket 75 is rotatably supported by the second shaft 71 by the second bearing 73, and the second shaft is fixed to the holding member 69 provided on the second steel plate 17b. Here, the movement of the first support base 17 and the movement of the second support base 49 associated therewith by providing the second chain 67 will be described in advance. As will be described later, when the veneer W is obtained by cutting the log W by the tool 1 〇 5, the signal from the controller 79 is received in the first figure, and the predetermined moving speed 'the support frame 17' The second base 19 is moved toward the main shaft 3 side. Therefore, in Fig. 7, the first support base 17 is away from the mounting base 77 in the right direction together with the box type mounting unit 18. On the other hand, 'because the length of the second chain 67 is constant, the tension acts on the second chain 67 of the -17-201119819 by the movement of the first support table 17 and the box-type mounting unit 18, by the second linear bearing 5 1 On the other hand, the second support base 49, which is movably movable up and down on the first steel plate 17a, rises to a distance equal to the moving distance of the first support base 17. The length of the second chain 167 is such that, in the movement of the first support base 17 in the process of cutting the logs W, the members are in the following positional relationship with respect to the members of the logs W being cut. To decide. That is, Fig. 9 is a view showing the positional relationship of the main members when the logs are viewed from the cross-sectional side of the wood, and when the rotating logs W are cut by the cutter 105 to obtain the veneers γ having the thickness τ, the cutters 1〇5 The trajectory of the blade edge through the log W is represented by a two-dot chain line in Fig. 9, and is a hypothetical Archimedean spiral curve (hereinafter referred to as "curve" as described above). In Fig. 9, the solid line located at the outermost side of the curve indicates that the interval between the outer line of each curve and the inner line of the outer circumference of the original W at that time is the thickness T of the veneer. The symbol Q indicates the center of rotation of the log W. The length ' of the second chain 67' is adjusted such that the contact portion P of the first backing roll 27 and the upper end surface 61a of the first backing support 61 are located on a curve indicating the outer circumference of the log W. The positional relationship 'when the thickness of the veneer is changed, the distance to be connected by the second chain 67 needs to be changed, and for this reason, the distance can be changed freely by appropriate means. For example, 'the female thread is formed on the mounting table 7 7 , and the male thread which is matched with the female thread is formed at the end of the second chain 67 7 on the mounting table 7 7 side, and the male thread can be freely rotated by the 201119819, and the male thread can be used. The amount of insertion caused by the rotation of the female thread adjusts the distance. Further, the second air cylinder 65 is in a state in which compressed air of a constant pressure is injected. The pressure is set to the following number: that is, the second support is not hindered by the tension applied to the second chain 67 when the first support table 17 is moved toward the main shaft 3 side on the second base 19. The table 49 is raised, and, as will be described later, when the cutting of the log W is finished, and the first support table 17 is moved away from the main shaft 3, so as to perform cutting of the next log w, if the second chain 67 is When the above tension disappears, the second support base 49 can be lowered. As described above, from the cross section of the wood, in the state surrounding the log W, the planer holder 101, the first backing roll 2 7 and the first backing body 61 are disposed. The controller 79 is configured to input various kinds of information as described below, and to cause the respective members to operate based on the above information. The embodiment of the present invention is constructed as described above, and its operation will be described below. Initially, the operator inputs information on the thickness T of the veneer to the controller 79 by cutting the log W by the cutter 105 in advance. As an initial state, the length of the second chain 67 is adjusted in advance as described above. On the other hand, the substantially central portion of the two wood cross-sections of the logs W indicated by the two-dot chain line of Fig. 1 is sandwiched between the pair of main shafts 3 in advance. -19- 201119819 In this state, the pair of main shafts 3 are rotated, and the cutting is started by the cutter 1 〇5. Since the shapes of the logs W are different from each other, for example, the following settings are made so that the above-described respective members are located and started. The rotating logs W will not touch the fully separated position. That is, by visual operation, the position of the tool 105 reaches a position that is sufficiently separated from the cut log, and a signal that causes the first servo motor to actuate is sent to the controller 7 9, so that the planer holder 1 0 1 moves to The standby position on the right side of Figure 1. Further, in conjunction with the operation of the planer holder 101, a signal for causing the sixth servo motor 9 and the seventh servo motor 63 to actuate is issued from the controller 79, and the first backing roller is the same as that shown in Fig. 9. The contact portion P of the outer peripheral surface of 27, the upper end side surface 61a of the first back support body 61 is always located on the above-described curve in the rotational direction of the log W from the cutting edge position of the moved cutter 105. Due to the action of the second chain 67 generated by the actuation, and in response to the above-described actuation, a signal is sent from the controller 79 to cause the seventh servo motor 63 to actuate, and the first backing body 61 is also rotated by the spindle 3. The center is substantially directly below, and on the above line of the above curve, reaches a position that is sufficiently separated from the outer peripheral surface of the log. The above setting method is taken as the initial state. In order to start cutting the log W from the above state, if the operator transmits an operation signal by manual operation to the controller 79, the controller 79 will issue a servo motor for causing the spindle 3, the first servo motor, and the sixth servo motor 9 And the seventh servo motor 6 3 to act on the letter -20- 201119819 sparse. As a result, the spindle 3, that is, the log W, rotates, and the rotation of the first jaw 3 causes the planer holder ιοί to move toward the spindle 3, and the rotation of the thread 促使 causes the first backing device 5 to face the spindle 2 at the planer holder 1 In the movement of 0 1 , the absolute rotation encoder of the first servo device sequentially changes the distance between the rotation center of the spindle 10 of the tool 10 (hereinafter referred to as "the information of the distance is always input. Go to the controller 79. From the controller 79 to which the distance L1 information is input, the actuation signal for causing the main speed change is output to the servo motor of the spindle 3 so that the log W rotated by the spindle 3 is at the peripheral speed of the tool. In addition to the peripheral speed of the disk-shaped rotating body 111, as described above, the rotary encoder rotational speed information from the spindle 3 is input to the controller 79. Based on this information, the controller 79 calculates the time required for the spindle 3 to rotate. S1, the thickness obtained by cutting the log W by the cutter 1 〇5 is set to a desired 値T, and a signal for causing the first servo electric actuation is issued, so that the planer is promoted every time S1 | Rotating by the main shaft 3 The log W is only T. As a result, although the planer holder 101 moves, it is moved by the absolute rotary encoder provided in the first servo motor to transmit the information to the controller 79 for control. In the aspect, the controller 7 9 is also driven to the sixth servo; f a male thread is moved by the fourth positive i. The tip of the motive and the rotation of the shaft 3 from the L1") are cut as described above. Also, the single-plate motive required to rotate it for one week is confirmed by the movement distance of I 101 to the moving distance, and the number 9 sends -21 - 19,198, 19, which causes the signal to be actuated, so that the first buckling device 5 rotates every time the main shaft 3 rotates. The distance W is only moved toward the log W in one week. As a result, the first buckling device 5 moves, and the moving distance can be confirmed by the absolute rotary encoder provided in the sixth servo motor 9, and the information can be transmitted to the controller 79 for control. In addition, the first support base 17 constitutes a part of the first back support device 5, the first back support roller 27 fixed to the first support table 17 moves toward the log W, and the second support base 49 is the second chain as described above. As in 67, it continues to rise with respect to the first support table 17. Further, as described above, as a result of the first support table 17 moving in the right direction shown in Fig. 1, in this state, the first back support body 61 is shifted in the right direction from a substantially right position of the main shaft 3. However, by transmitting the information of the absolute rotary encoder provided in the sixth servo motor 9 to the controller 79, the seventh servo motor 63 is caused to act to rotate the fifth male screw 63a, thereby causing the first backing body. 61 moves to the left side by a distance equal to the distance of movement of the first support base 17 in the right direction shown in Fig. 1 . This moving distance can also be confirmed by an absolute rotary encoder provided in the seventh servo motor 63. As a result, the cutting edge of the cutter 105 that continuously moves during the cutting of the log W, the contact portion P of the first backing roller 27, and the upper end surface 61a of the first backing support 61 are close to each other, and are at any time. Figure 9 shows the curve. By the operation of the above-described respective members, the logs W are cut by the cutter 1 〇 5 in the manner described below in -22-201119819. The logs W are natural objects and have different shapes, and have irregularities on the outer circumference. For this reason, after the cutting is started, the log w is rotated by the force transmitted from the disk-shaped rotating body 111 and the main shaft 3 while being supported by the main shaft 3 in the cross section of the wood, and is interrupted by the cutter 105. Sexual cutting can obtain a discontinuous veneer Y with a certain thickness. The outer periphery of the log w at this time is different from the solid line shown in the ninth figure as the outer circumference of the log W, that is, in a state in which a plurality of portions are partially concavely inward in the direction of rotation of the solid line. Therefore, the first backing roll 27 and the first backing support 61 are intermittently collided with the outer peripheral surface of the rotating log W, and the log W» is supported while the cutting is further performed. As shown in Fig. 10 corresponding to the figure, the logs W supported by the main shaft 3 are substantially cylindrical, and a single-plate Y which is continuously formed into a strip shape can be obtained. In this state, due to the above-described configuration, the contact portion p of the first backing roll 27 is at a position substantially horizontal with respect to the log w, and the first back support 61 is substantially aligned with respect to the log W. The lower position is continuously in contact with the outer peripheral surface of the log W, respectively. In the Figs. 10 to 14', for the sake of convenience, the members provided on the blade holder 1 仅仅 1 only show the cutter 105, the tip end rod 1 17 , and the disk-shaped rotating body U1. If the cutting is further continued, as shown in Fig. 1, if the absolute rotary encoder connected to the first servo motor detects the progress of the cutting process of the log -23- 201119819 »^o Following this, the 3rd axis state will be sent to the controller 79 when the W-knife with the touch path of 5 ο straight 1 will be received by the nearest number. Then, the controller 79 issues an operation signal for the hydraulic cylinder (not shown) of the spindle 3 to cause the spindles 3 to move to the standby position separated from the logs W, respectively. As a result, the log W is supported only by the disk-shaped rotating body 111, the first backing roll 27, and the first backing support 61, and is rotated by the force from the disk-shaped rotating body 1 1 1 to continue the tool. 1 05 for cutting. In the cutting in this state, since the spindle 3 is separated from the log W as described above, the cutting can be further continued from the state of Fig. 1 . As the cutting continues, in the same manner, in the eleventh figure, toward the center of rotation of the log W, from the right side, the planer seat 10 1 is the tool 1 0 5 and the disk-shaped rotating body 1 1 1 is moved, and On the left side, the first backing roll 27 is moved, and the first back support 61 is moved from the lower side. At this time, the contact point P' of the first backing roll 27 of the cutting edge of the cutter 105 and the upper end surface 61a of the first backing support 61 are closer to each other, and are always on the curve shown in Fig. 9. In the cutting at this stage, the spindle 3 is separated from the log W. Therefore, the spindle 3 cannot be used to detect the time required for the log W to rotate one revolution. Then, as described above, the above-described time is detected by using the driven rotating annular member 2 9 ' in contact with the outer peripheral surface of the log W instead of the main shaft 3. That is, 'the number of revolutions per unit time of the ring member 29 to be detected by the rotary encoder 35' and from the second servo motor 9 -24-201119819
絕對旋轉式編碼器所獲得的第一背撐輥27之與原木W 抵接處和原木W的旋轉中心之間的距離都輸入到控制 79 = 在控制器79係從上述旋轉數來計算原木w的圓周 度，從上述距離來計算原木W的外周長度，藉由將外 長度除以圓周速度，計算出原木W旋轉一周所需要的 間S2。 該時間S 2係隨著原木W切削進行而變小，從控制 7 9根據時間S 2向各伺服電動機發出信號，與上述相 地’使得原木W每旋轉一周，刨刀座ιοί及第一支承 17朝向原木W移動的距離保持成一定。 因此，能夠繼續獲得上述厚度的單板Y。 當然，即使在該階段，也是根據來自控制器79的 動信號，使得第七伺服電動機63進行作動，繼續進行 制，以使得第一背撐體6 1位於原木W的旋轉中心的大 正下方位置。 在上述刀具1 05及圓盤狀旋轉體1 1 1，第一背撐輥 及第一背撐體6 1的移動過程中，第一背撐輥27和第一 撐體61互相進一步接近，如上所述，在與第2圖所示 左右方向上相鄰接的各第一背撐輥2 7的空間相對的位 上，配置著第一背撐體61。 因此，因應於隨著切削的進行而依序地小徑化的原 W，第一背撐輥2 7及第一背撐體6 1係如上所述地進行 動，不久，原木W的直徑將會成爲在第12圖中之第一 相 器 速 周 時 器 同 台 作 控 致 27 背 的 置 木 移 背 -25- 201119819 撐輥27的外周面和第一背撐體61的斜面61c互相重疊的 那種直徑。 這種重疊時的原木W的直徑（如上所述地，能夠得到 連續帶狀的單板時的原木W的木材橫截面的外周形狀， 正確地說並不是圓，而是上述曲線的一部分，但是爲了方 便起見’稱之爲直徑）係由：第一背撐輥27的直徑以及相 對原木W旋轉中心的位置，也就是由：第一背撐體61的 上側端面6 1 a及斜面6 1 c的形狀來決定的。 若從該狀態進一步進行切削，原木W的直徑變得更 小的話，則如第1 3圖及作爲第1 3圖的原木W附近的局 部放大說明圖的第14圖所示，第一背撐體61將會進入上 述互相鄰接的各第一背撐輥27的空間內，而不會妨害互 相的移動。 因此，原木W繼續由第一背撐輥27的外周面以及第 —背撐體6 1的上側端面6 1 a所支承，而被進行切削。 相對於第一背撐體6 1的上側端面6 1 a，刨刀座側端 面61 b被形成垂直，因此，如第14圖所示，即使原木W 成爲更小徑，第一背撐體6 1也不會與刀具1 05等設在刨 刀座1 〇 1上的各構件相碰。 其結果，能夠一邊藉由第一背撐輥2 7及第一背撐體 6 1來支承原木W，一邊持續進行良好的切削，直到成爲 迄今爲止不可能切削的小直徑’例如：1 〇mm左右爲止。 若進一步繼續切削’藉由與第一伺服電動機連接的絕 對旋轉式編碼器來檢測到刨刀座1 〇 1已經到達第1 4圖所 -26- 201119819 示位置的話’則接受到該信號的控制器79將會發出促使 第一伺服電動機、第二伺服電動機U3 、第六伺服電動 機9、以及第七伺服電動機63的作動停止的信號。 其結果，將會結束原木W的切削作業。 接著’根據操作者的輸入信號，將會發出促使第一伺 服電動機、第六伺服電動機9、以及第七伺服電動機63 與上述相反的逆旋轉的信號，使得刨刀座〗〇 1、第一背撐 裝置5朝向初始位置後退以進行待機。 當該第一背撐裝置5後退時，在第5圖中，相對於第 二支承台49，來自第二鏈條67所作用的朝上方的力量消 失’僅僅作用著從第二空壓缸65的第二活塞桿65a朝下 方推壓的力量》 因此，當上述原木W的切削結束時，原本係朝箱型 安裝單元18的上方移動的第二支承台49就很容易下降， 同樣地朝向初始位置移動。 此時，因來自第二空壓缸65的力量，在第二鏈條67 中作用有張力，因此，第二鏈條67不會脫離鏈輪75。 以下則是藉由反覆上述的作動’即可一根一根地切削 原木W。 其次，說明變更例如下。 1)在上述實施例中，第一背撐體61係採用與原木w 進行滑動的構件，但是，也可以採用藉由軸承而被支承成 可從動旋轉自如的旋轉體。這種情況下’旋轉體的直徑儘 可能地小的話，就可使得原木w能夠切削到儘可能小的 -27- 201119819 直徑。 2)在上述實施例中，與切削中的原木w的外周面相 碰的兩個構件爲第一背撐輥27及第—背撐體61，若隨著 切削的進行而逐漸小徑化的原木w的直徑變成預先設定 的數値的話’就使得第一背撐體61進入到互相鄰接的各 第一背撐輥27的空間內。 可是’也可以製作成使得這兩個構件一體化，預先互 相使得另一方側進入到其中—方側的凹部，且兩個構件的 位置關係不產生變化。 亦即’第1 5圖是主要部分的側面說明圖，第1 6圖是 從第15圖的單點鏈線H-H觀看箭頭方向的圖，是除去原 木W後的狀態的正面說明圖。也就是製作成如第1 6圖所 示的構成方式。 符號81是第二背撐輥’在第三軸83上，係在切削中 旋轉的原木W的軸中心線方向上隔開間隔，以與第一背 撑輕27相同的結構固定於該第三軸83。 符號85是第三背撐輥’同樣地在第四軸87上，係在 原木W的軸中心線方向上隔開間隔，同樣地固定於該第 四軸8 7。 第二背撐輥81及第三背撐輥85係如第16圖所示， 製作讓另一方側的各輕能夠進入其中一方側的互相鄰接的 輥與輥之間的形狀及間隔。 第一背擦輕81及第三背擦輥85與上述實施例的第— 背撐輥27的構造相同。 -28 201119819 亦即，兩輥8 1及8 5雖然未圖示，但是係藉由軸承可 旋轉自如地保持在與第一支承台1 7相同的支承構件（以 下，稱爲“支承構件R”）上，且藉由電動機39的驅動而可 旋轉，在兩個輥81及85之其中一方，具有與用於計算原 木W的圓周速度的環狀構件29、旋轉編碼器35等相同的 結構。 另一方面，給予原木W旋轉力量的圓盤狀旋轉體111 | 及刀具1 05雖然未圖示，但係與上述實施例相同地，設置 在刨刀座1 〇 1上。 是以，從木材橫截面看，以圍繞著原木W的狀態， 配置著刨刀座1 〇 1、第二背撐輥8 1及第三背撐輥8 5。 支承構件R係與第一支承台1 7相同地，被控制成對 應於刨刀座的移動而進行移動。 在這種構成方式中，係與最初參照第1圖來說明的情 況相同地，在利用主軸3保持原木W並使其旋轉的狀態 φ 下，使得刨刀座及支承構件R如上所述地朝向原木W移 動，與上述實施例相同地，藉由刀具105來切削原木W。 此時，在原木W成爲圓柱狀，正確地說，原木W的 外周成爲上述曲線的一部分之前，第二背撐輥81及第三 背撐輥85係與原木W的外周面進行斷續性的相接觸。 另外，若原木W成爲圓柱狀，則第二背撐輥8 1及第 三背撐輥85就如第15圖所示，係與原木W的外周面進 行連續性的接觸，隨著原木W的逐漸小徑化，第二背撐 輥8 1及第三背撐輥8 5之與原木W接觸的位置將會互相 -29- 201119819 地逐漸接近。 接著，繼續切削’與上述實施例相同，若檢測到原木 w的直徑成爲預先設定的値的話，則使得主軸3離開原木 W之後，原木W —邊由圓盤狀旋轉體111、第二背撐輕 81及第三背撐輥85所支承，一邊藉由來自圓盤狀旋轉體 111的力量使其旋轉，藉由刀具105來繼續進行切削。 若在該狀態下繼續切削的話，則如第1 7圖所示，原 木W之與第二背撐輥81及第三背撐輥85的接觸處將會 變化到更接近的位置，能夠藉由第二背撐輥8 1及第三背 撐輥8 5繼續予以支承，直到原木W的直徑變得更小爲 止，因而可提高成品率。 若想要在第1 7圖狀態下，讓原木W的直徑變成所希 望的最小値的話，只要將第二背撐輥81及第三背撐輥8 5 的位置關係及直徑的數値設定成：第二背撐輥81及第三 背撐輥85的外周面不抵達較之通過原木W的旋轉中心的 垂線即單點鏈線K-K更靠近刀具1 05側的數値即可。 3)在上述實施例及變更例中，若隨著切削進展逐漸小 徑化的原木W的直徑變成所定値的話，則使得主軸3離 開原木W，並且繼續進行切削，但是，也可以不使得主軸 3離開，而繼續進行切削。 這種情況下，係將主軸3採用：公知的多重主軸，例 如，在小徑主軸的外側設有大徑主軸，且相對於各原木W 的木材橫截面可往復移動自如的雙重主軸。 原木W直徑大時，以該雙重主軸的大徑及小徑的兩 -30- 201119819 個主軸如上述實施例那樣地支承原木w使其旋轉，若隨 著切削原木 w變成小徑，則使得大徑的主軸離開原木 W，繼續進行切削。 當然，無法切削原木W直到其變成比小徑的主軸直 徑更小的直徑，但是，如上所述，藉由第一背撐輥27及 第一背撐體61，或第二背撐輥81及第三背撐輥85來支 承原木W，因此，能夠防止原木W因切削時所受到的力 量而撓曲，能夠獲得所希望厚度的單板。 4) 在上述實施例及變更例中，最初在藉由主軸3來支 承原木W的狀態下，由刀具1 05開始進行切削。 但是，若是預先大致加工成圓柱狀的原木W的話， 則也可以不使用主軸3，僅僅藉由圓盤狀旋轉體1 1 1、第 —背撐輥27及第一背撐體61、或第二背撐輥81及第三 背撐輥85來支承原木W，就開始進行切削。 5) 在上述實施例及變更例中，切削原木W時，係使 得刨刀座101、第一背撐裝置5、或第二背撐輥81、第三 背撐輥8 5 —起朝向原木W的旋轉中心移動，但是，也可 以不使刨刀座1 〇 1移動，而在一定位置進行待機，並促使 第一背撐裝置5，或第二背撐輥81、第三背撐輥85朝著 相同方向移動。相反地，也可以促使刨刀座1 01移動，而 使得第一背撐裝置5，或第二背撐輥8 1、第三背撐輥85 在一定位置進行待機。 這種情況下，只要將相對於原木W的旋轉一周之使 其移動側的構件的移動距離設爲上述實施例中的移動距離 -31 - 201119819 的二倍即可。 6)在上述參照第15圖至第16圖來說明的變更例中， 爲了減少原木W旋轉時的阻力，將與原木W外周面接觸 的構件採用如第二背撐輥81及第三背撐輥85那樣的旋轉 體，但是，也可以將其中的一方使用阻力大一些之表面平 坦的滑動體。 亦即，例如第1 8圖所示，將抵接構件8 7與第二背撐 輥8 1及第三軸8 3作成一體來構成第二背撐體8 9，以代 替第15圖的第三背撐輥85。 在抵接構件8 7上，如圖所示，上端部附近沿著第三 軸8 3的軸中心線方向隔開間隔，形成多個缺口部，以便 第二背撐輥8 1能進入。 另外，與此相反，抵接構件8 7之除了缺口部以外的 上端部’係成爲進入沿著上述第二背撐輥8 1的軸中心線 方向的互相鄰接的輥與輥之間的狀態。 該抵接構件8 7係設有與原木W的外周面相抵接的傾 斜面8 7 a。 這種情況下，相對於原木W的旋轉一周，係藉由促 使刨刀座1 0 1和第二背撐體8 9的至少其中一方側，朝向 上述原木W的方向移動所定量，而能夠使得第二背撐輥 8 1及傾斜面87a繼續與原木W的外周面相抵接，並且藉 由刀具來切削原木W。 促使原本支承著原木W的主軸3離開原木W的時 期’以及原木W預先加工成爲大致圓狀的情況的對應方 -32- 201119819 式’只要以與採用第15圖所示的第二背撐輥81及第三背 撐輥8 5來切削原木w的情況相同的方式來加以對應即 可〇 7) 在上述所示實施例及變更例中，係藉由設在與圓盤 狀旋轉體111相對位置上的第一背撐輥27及第一背撐體 61 ’或第二背撐輥81及第三背撐輥85，或第二背撐體89 來支承原木W的外周面，但也可以再加上與原木W外周 面相g接而予以繼續支承的旋轉體等的其他構件。 8) 在上述所示實施例及變更例中，係以圓盤狀旋轉體 1Π來作爲旋轉驅動體，爲了減少原木W因刀具105切削 時所發生的單板的背面裂縫，係在緊靠刀具105的前方， 使用了對原木W的外周面加壓的刀尖桿117。 但是，也可以在緊靠刀具105的前方，設有兼有作爲 旋轉驅動體的功能以及作爲刀尖桿的功能的構件，例如僅 僅表示主要部分的第19圖所示，設有藉由電動機（未圖示） 來驅動旋轉的輥桿91，來代替上述圓盤狀旋轉體111及 刀尖桿Π 7。 這種情況下，爲了提高向原木W傳遞的旋轉力量’ 可以在輥桿9 1的外周面上形成凹凸。 9) 在上述所示實施例中，可以作如下的變更。 在本變更例中，將具有與原木W的外周面抵接的抵 接面的兩個抵接構件設爲互相獨立支承’且可移動。 本變更例的構成方式，係在上述實施例的第1圖所示 的構成方式中，主軸3以及主軸3右側的刨刀座1 0 1等的 -33- 201119819 構件’同樣地也是具備用於使得第一陽螺紋丨〇 3旋轉的具 有絕對旋轉式編碼器的第一伺服電動機。 另外，在上述實施例的第一背撐裝置5中的第一基台 7’連接絕對旋轉式編碼器（未圖示）的第六伺服電動機9, 第四陽螺紋11，第一軸承13，陰螺紋15，第一支承台 17’將兩端固定在兩第一支承台17的水平的第二鋼板 17b，安裝單元17c ’第二基台19，第一線性軸承21，軸 承23，第一軸25，第一背撐輥27，環狀構件29，第一齒 輪31 ’第二齒輪33’旋轉式編碼器35等等的構件，在本 變更例中也是各自以同樣的狀態來配置使用。 下面’參照附圖說明本變更例之與上述實施例不同的 構成。 第20圖是本變更例之與第1圖的第一背撐裝置5相 當的第二背撐裝置1 3 1的側面說明圖。 第21圖是從第20圖的單點鏈線L-L觀看箭頭方向的 說明圖。第22圖是從第21圖的單點鏈線M-M觀看箭頭 方向時顯示後述的第二背撐體133以及與其關連各構件的 平面說明圖。第23圖是從第22圖的單點鏈線N-N觀看 箭頭方向的局部截面說明圖。第24圖是顯示從第23圖狀 態到後述的第二背撐體1 3 3的上升狀態、升降台1 3 5處於 最上位置狀態的作動說明圖。第2 5圖是從第2 1圖的單點 鏈線S-S觀看箭頭方向的局部截面說明圖。第26圖是表 示本變更例的原木W的切削開始時的說明圖。第2 7圖是 表示本變更例的原木W的切削結束時的說明圖。 -34- 201119819 符號1 3 3係與上述實施例的第一背撐體6 1相 在後述升降台135的上面’分別藉由固定台133c 定的多個的第二背撐體。 各第二背撐體1 3 3在其上側端面形成的缺口部 固定著由難以磨耗的材質所構成的片材1 3 3 a，且 面係形成水平的平坦面。 第二背撐體133係如第23圖所示，其刨刀座 端面133b係相對於上側端面61a形成垂直。 上述第二背撐體133與上述實施例的第一背發 同樣地設置成：在第2 1圖中，能夠進入以與上述 相同位置關係設置的互相鄰接的第一背撐輥2 7彼 的位置及大小。 符號135是升降台，在上部固定著第二背撐體 係如第2 1圖所示，係以與切削的原木w的纖維方 度對應的長度左右相連在一起。 在升降台135的第21圖所示的左右兩端部， 第一連接構件137，在第22圖中僅表示左側，該 接構件1 3 7用於將由後述的陽螺紋丨4〗的旋轉所產 下移動的力量傳遞給升降台1 3 5。 在各第一連接構件137的第23圖所示的離開 側的端部，分別形成上下貫通的陰螺紋1 3 9，在第 所示狀態下，相對於垂直方向，朝向上方逐漸地形 傾斜5度。 與陰螺紋139吻合的陽螺紋141插通於各 當，是 而被固 ，埋入 上側端 101側 e體61 實施例 此之間 133， 向的長 固定著 第一連 生的上 主軸3 23圖 成向左 陰螺紋 -35- 201119819 139° 在各陽螺紋141的下端，連接著固定在基台143上的 第八伺服電動機145， 陽螺紋141係根據來自後述第二 控制器的信號，兩個第八伺服電動機1 4 5能夠以預先設定 的轉速互相同步，進行正轉/逆轉及停止。在第八伺服電 動機145，如後所述，設有絕對旋轉式編碼器（未圖示）， 用於檢測第二背撐體1 3 3的上側端面和主軸3的旋轉中心 之間的距離。 另一方面，在各第一連接構件137之第23圖中所示 的主軸3側，係如第21圖及第22圖所示，將第二連接構 件147固定設置在升降台135以及各第一連接構件137 上。 符號149是沿著第21圖的左右方向，相對於各第二 連接構件1 4 7的外側端部而分別設置的支柱。 各支柱149的主軸3側的面149a在第20圖所示狀態 下，隨著朝向上方，而逐漸形成向左傾斜5度。 如第20圖及第22圖所示，在面149a上設有第四線 性軸承151，將其滑動單元151b與第二連接構件147予 以固定。 藉由上述的構成方式，各第八伺服電動機145係如後 所述地接受來自控制器1 5 9的控制信號，以如上所述的方 式進行旋轉，以使得各陽螺紋1 4 1同步正轉/逆轉及停 止。 因各陽螺紋1 4 1作動引起的各陽螺紋1 4 1插通的陰螺 -36- 201119819 紋1 3 9的作用，而促使與各第一連接構件1 3 7 台135上下移動及停止。 又’與各第一連接構件137 —體的升降ΐ 動，因上述第四線性軸承1 5 1的作用，係沿 149的面M9a的滑動單元151b平行的方向被i 亦即，升降台1 3 5在第23圖中沿著箭頭 隨著朝向上方，逐漸向左傾斜5度的路徑，上 » ± 〇 再者，第二背撐體1 3 3的大小及配置位置 列方式來構成。 第23圖係表示升降台135移動到最下方 在該狀態下，在第23圖中，從第二背撐體 1 3 3 a的上側端面的右側角部例如：3 0mm程度 主軸3的旋轉中心正下方。 另一方面，第24圖係表示升降台135處 φ 狀態，爲方便說明起見，用黑色圓Q來表示Ξ 轉中心，第二背撐體1 3 3的片材1 3 3 a的上側 角部係位於該旋轉中心的正下方位置。 第二背撐體〗3 3的大小及配置位置，係如 成方式，在第23圖狀態下，從主軸3的旋轉 1 3 3a的上側端面的距離，在本變更例中，係 係成爲一邊使得第二背撐體1 3 3及片材1 3 3 a 周面相抵觸一邊進行切削的情況下之可切削原 徑。 —體的升降 ί 135的移 著與各支柱 ί向。 所示方向， 下移動及停 ，係按照下 時的位置， 133的片材 左側處位於 於最上位置 1軸3的旋 端面的右側 上所述的構 中心到片材 如後所述， 與原木的外 木的最大半 -37- 201119819 當然，在第23圖中，若使得片材133a的左右方向的 長度更長，增加陽螺紋1 4 1的朝下方的長度，使得升降台 1 3 5從圖示位置更進一步下降的話，則能夠使得上述最大 半徑更大。 ‘ 在第20圖及第21圖中，符號27係與上述實施例相 同，係爲被設有多個的第一背撐輥。 又，僅僅說明第一軸25的左端端部25a，係如第25 圖所示，用於以與上述實施例相同的圓周速度來驅動第一 背撐輥27旋轉的電動機153係被固定在第二鋼板17b的 下面。 採用與上述實施例相同的方法將第三鏈輪155固定在 電動機153的旋轉軸153a上。 又，與上述實施例相同地，將第一鏈輪3 7固定在第 —軸25的左端端部25a。 如第25圖所示，藉由將第三鏈條157掛設在上述兩 個鏈輪37，155上，將電動機153的動力傳遞到第一背撐 輥2 7，使其進行旋轉。 如第21圖所示，在第一軸25的右端端部25a也設有 電動機153，與在上述第一軸25的左端端部25a側的電 動機153同步’使得第一背撐輕27旋轉" 再者，如後所述，設有控制器1 5 9，係一邊藉由絕對 旋轉式編碼器進行檢測，以使得移動的各構件位於設定的 位置，一邊檢測各自對應構件的位置，並且向各伺服電動 機發送作動信號。 -38- 201119819 在上述構成方式中，控制器159的構成方式如下。 亦即，與上述實施例相同，若預先設定單板厚度T的 話，則從控制器1 59發出藉由第一伺服電動機使得第一陽 螺紋1 03旋轉的信號，相對於主軸3旋轉一周，使得刨刀 座1 0 1朝向主軸3側僅僅移動距離T。 藉由設在第一陽螺紋1 03的絕對旋轉式編碼器，檢測 設在上述正在移動中的刨刀座101的刀具105的刀尖位 置，和主軸3的旋轉中心之間的距離，將該資訊傳遞到控 制器1 5 9。 又，還藉由分別設在第六伺服電動機9以及第八伺服 電動機1 45的絕對旋轉式編碼器，向控制器1 59傳送從主 軸3的旋轉中心到第一背撐輥27的接觸處P以及第二背 撐體1 3 3的片材1 3 3 a上側端面的各距離的資訊。 根據上述資訊，控制器1 59向第六伺服電動機9以及 第八伺服電動機1 45發出如下所述之控制各構件使其作動 的信號。 亦即’即使相對於旋轉中心Q的刀具105的刀尖位 置依序地變化，也能夠與上述實施例的第9圖的情況同樣 地’在於由上述T所決定的阿基米德螺線曲線（以下與上 述實施例相同，稱爲“曲線”），且在通過上述刀尖沿原木 W的旋轉方向連續的大致半週份的上述曲線上，相對於旋 轉中心Q ’在與上述刀尖相反側，第一背撐輥27的接觸 處P繼續位於上述曲線上，第二背撐體1 3 3的片材1 3 3 a 的上側端面繼續位於旋轉中心Q的大致正下方的位置， -39- 201119819 亦即’與第9圖的第一背撐體61的上側端面61 a相同的 位置。 在上述這種構成方式中，原木W的切削係以下述方 是進行。 最初係與上述實施例相同，操作者預先將藉由刀具 1 05切削原木W所得到單板的厚度T的資訊輸入控制器 159，將第1圖中用雙點鏈線表示的原木W的兩個木材橫 截面的大致中央部夾持在一對主軸3之間。 在該狀態下，與上述實施例相同地，使得一對主軸3 旋轉，當使得原木W開始旋轉時，促使刨刀座1 01、第一 背撐輥2 7以及第二背撐體1 3 3 —邊保持在上述曲線上的 位置，一邊各自移動到各構件不與原木W相碰觸的位置 待機。 接著，與上述實施例相同地，若操作者將藉由手工作 業的作動信號送向控制器1 5 9以使得主軸3旋轉的話，則 刨刀座1 〇 1、第一背撐輥2 7以及第二背撐體1 3 3就會一 邊保持上述曲線上的位置，一邊各自向著主軸3即原木W 的旋轉中心進行移動。 其結果，係與上述實施例相同地，可切削原木W而 得到單板。 若繼續上述切削，用主軸3所支承的原木W大致成 爲圓柱狀，則可得到連續成爲帶狀的單板Y。 若進一步繼續切削，接近到刀具1 05將會接觸到主軸 3程度的値的話’則與上述實施例同樣地，控制器1 5 9就 -40- 201119819 對於主軸3的油壓缸（未圖示），發出促使主軸3移動到離 開原木W的待機位置的信號。 其結果，原木W僅僅由圓盤狀旋轉體11 1 '第一背撐 輥27以及第二背撐體133所支承，由來自圓盤狀旋轉體 1 1 1的力量使其進行旋轉，繼續藉由刀具1 〇 5來進行切 削。 這種情況下的原木.W的轉速係與上述實施例相同’ 根據由設在第一陽螺紋1 03的絕對旋轉式編碼器所得到的 刀具1 0 5的刀尖位置和主軸3的旋轉中心之間的距離’以 及與原木W的外周面抵接旋轉的環狀構件29的每單位時 間的旋轉數，在控制器1 5 9求取。 若進一步繼續切削的話，係如第27圖所示，原木W 的直徑變得更小，則與上述實施例相同，第二背撐體1 3 3 將會進入上述互相鄰接的各第一背撐輥27的空間內，能 夠不妨害地互相移動而繼續進行切削。 因此，係藉由第一背撐輥27的外周面以及第二背撐 體1 3 3的片材1 3 3 a的上面來繼續支承原木w，直到切削 成爲很小徑爲止。 此後，結束切削，開始執行下一個原木切削等的工作 係與上述實施例相同地進行。 在第23圖所示的狀態下，在各第一連接構件137 上，使得陰螺紋1 3 9隨著朝向上方，逐漸形成向左傾斜5 度。 因此，隨著切削進展，原木W直徑變小，在第2 3圖 -41 - 201119819 中’第二背撐體1 3 3 —邊上升一邊向左側移動。 該進行移動的理由係與上述實施例相同。 1 〇)在上述說明的實施例及變更例中，係使得刨刀座 及抵接構件一起朝著原木的旋轉中心移動，藉由刀具來切 削原木，可是，也可以將某—方固定在一定位置，而使另 一方朝著上述旋轉中心移動。 雖然本發明已經以較佳實施例揭露如上所述，然其並 非用以限定本發明，任何熟習此項技藝者，在不脫離本發 明之精神和範圍內，仍可作些許的更動與潤飾，因此本發 明之保護範圍係以申請專利範圍所界定者爲準。 【圖式簡單說明】 第1圖是實施例的側面說明圖。 第2圖是從第1圖的單點鏈線A-A觀看箭頭方向的 說明圖。 第3圖是從第2圖的單點鏈線B-B觀看箭頭方向的平 面說明圖。 第4圖是從第2圖的單點鏈線C-C觀看箭頭方向的局 部截面側面說明圖。 第5圖是從第2圖的單點鏈線D-D觀看箭頭方向的 局部截面側面說明圖。 第6圖是從第2圖的單點鏈線E-E觀看箭頭方向的局 部截面側面說明圖。 第7圖是從第2圖的單點鏈線F-F觀看箭頭方向的局 -42 - 201119819 部截面側面說明圖。 第8圖是從第2圖的單點鏈線 局部截面側面說明圖。 第9圖係以不意圖表示一邊使得 切削時從木材橫截面側觀看原木時， 的軌跡之假設阿基米德螺線曲線和主 第1 〇圖是說明原木W的切削狀 第11圖是說明原木w的切削狀 第12圖是說明原木W的切削狀 第13圖是說明原木W的切削狀 第14圖是第13圖的原木w 圖。 第15圖是變更例的主要部分的仿 第1 6圖是從第1 5圖的單點鏈I 的圖，係除去原木W狀態的正面說明 第17圖是說明原木W的切削狀 第1 8圖是變更例的側面說明圖< 第1 9圖是變更例的側面說明圖< 第20圖是變更例的與第1圖的 的背撐裝置1 3 1的側面說明圖。 第21圖是從第20圖的單點鏈線 說明圖。 第22圖是從第21的單點鏈線 表示第二背撐體133以及與其有關 G-G觀看箭頭方向的 原木旋轉一邊用刀具 刀具的刀尖通過原木 要構件。 態的作動說明圖。 態的作動說明圖。 態的作動說明圖。 態的作動說明圖。 附近的局部放大說明 犯面說明圖。 泉H-H觀看箭頭方向 Ϊ圖。 態的作動說明圖。 第一背撐裝置5相當 L-L觀看箭頭方向的 M-M觀看箭頭方向、 聯各構件的平面說明 -43- 201119819 圖。 第23圖是從第22圖的單點鏈線N-N觀看箭頭方向 的局部截面說明圖。 第24圖是表示從第23圖的狀態至第二背撐體133處 於最上位置狀態的作動說明圖。 第25圖是從第21圖的單點鏈線S-S觀看箭頭方向的 局部截面說明圖。 第26圖是表示變更例的原木W的切削開始時的說明 圖。 第27圖時表示變更例的原木W的切削結束時的說明 圖。 第2 8圖是以往裝置的側面說明圖。 第29圖是以往裝置的作動說明圖。 【主要元件符號說明】 1 :刨刀座 3 :主軸 5 :第一背撐裝置 7 :第一基台 17 :第一支承台 27 :第一背撐輥 49 :第二支承台 6 1 :背撐體 67 :第二鏈條 -44- 201119819 9 1 :輕桿 1 〇 1 :刨刀座 1 1 1 :圓盤狀旋轉體 1 3 1 :第二背撐裝置 1 3 3 :第二背撐體 135 :昇降台 1 3 9 :陰螺紋 | 1 4 1 :陽螺紋 143 :基台 1 4 9 :支柱The distance between the first backing roll 27 at the abutment of the log W and the center of rotation of the log W obtained by the absolute rotary encoder is input to the control 79 = the controller 79 calculates the log from the above number of rotations w The circumference is calculated from the above distance to calculate the outer circumference length of the log W, and by dividing the outer length by the peripheral speed, the interval S2 required for the rotation of the log W is calculated. At this time, the S 2 system becomes smaller as the log W is cut, and a signal is sent from the control 7 to each of the servo motors according to the time S 2 , and the phase of the same is made to make the log W rotate once a week, the planer holder ιοί and the first support 17 The distance moved toward the log W remains constant. Therefore, it is possible to continue to obtain the veneer Y of the above thickness. Of course, even at this stage, the seventh servo motor 63 is actuated in accordance with the motion signal from the controller 79, and the operation is continued such that the first backing body 61 is positioned at a substantially lower position of the center of rotation of the log W. During the movement of the cutter 105 and the disc-shaped rotating body 1 1 1 , the first backing roller and the first backing body 61, the first backing roller 27 and the first supporting body 61 are further approached to each other, as above As described above, the first back support body 61 is disposed at a position facing the space of each of the first backing rolls 27 adjacent to the left-right direction shown in FIG. 2 . Therefore, in response to the original W which is sequentially reduced in diameter as the cutting progresses, the first backing roll 27 and the first backing body 61 are moved as described above, and soon, the diameter of the log W will be It will become the first phase of the first phase of the device in Fig. 12, and the second surface of the first roller support 61 will overlap with each other. That kind of diameter. The diameter of the log W at the time of such overlap (as described above, the outer peripheral shape of the wood cross section of the log W when the continuous strip-shaped veneer can be obtained is not a circle but a part of the above curve correctly, but For the sake of convenience, the diameter is referred to as the diameter of the first backing roll 27 and the position relative to the center of rotation of the log W, that is, the upper end face 6 1 a of the first back support 61 and the inclined face 6 1 The shape of c is determined. When the cutting is further performed in this state, and the diameter of the log W is smaller, the first backing is shown in FIG. 13 and FIG. 14 which is a partially enlarged explanatory view of the vicinity of the log W in FIG. The body 61 will enter the space of each of the first backing rolls 27 adjacent to each other without impeding the movement of each other. Therefore, the log W continues to be supported by the outer peripheral surface of the first backing roll 27 and the upper end surface 61a of the first back support 61. The planer side end surface 61 b is formed perpendicularly with respect to the upper end surface 61 1 a of the first back support body 61, and therefore, as shown in Fig. 14, even if the log W becomes a smaller diameter, the first back support body 6 1 It also does not touch the members provided on the planer holder 1 〇1 such as the cutter 105. As a result, it is possible to continue the good cutting while supporting the logs W by the first backing rolls 27 and the first backing support 61, until it becomes a small diameter that has hitherto been impossible to cut, for example: 1 〇mm Around. If the cutting is further continued, the controller that receives the signal is detected by the absolute rotary encoder connected to the first servo motor to detect that the planer holder 1 〇1 has reached the position shown in Figure -26-201119819. A signal for stopping the actuation of the first servo motor, the second servo motor U3, the sixth servo motor 9, and the seventh servo motor 63 will be issued. As a result, the cutting work of the log W will be ended. Then, according to the operator's input signal, a signal for causing the first servo motor, the sixth servo motor 9, and the seventh servo motor 63 to reversely rotate opposite to the above will be issued, so that the planer seat 〇1, the first back support The device 5 is retracted toward the initial position to stand by. When the first buckling device 5 is retracted, in FIG. 5, the upward force acting from the second chain 67 disappears relative to the second support table 49 'only acts on the second air cylinder 65 Therefore, when the cutting of the log W is completed, the second support table 49 which is originally moved toward the upper side of the box-mounted unit 18 is easily lowered, and is also oriented toward the initial position. mobile. At this time, since the tension acts on the second chain 67 due to the force from the second air cylinder 65, the second chain 67 does not come off the sprocket 75. In the following, the logs W can be cut one by one by repeating the above operations. Next, the description will be described below. 1) In the above embodiment, the first back support body 61 is a member that slides with the log w. However, a rotating body that is rotatably supported by a bearing may be used. In this case, the diameter of the rotating body is as small as possible, so that the log w can be cut to the smallest possible diameter of -27-201119819. 2) In the above embodiment, the two members that collide with the outer peripheral surface of the log w during cutting are the first backing roll 27 and the first back support 61, and if the cutting progresses, the log is gradually reduced in diameter. When the diameter of w becomes a predetermined number ', the first back support body 61 is made to enter the space of each of the first backing rolls 27 adjacent to each other. However, it is also possible to make the two members integrated so that the other side enters the concave portion on the side side in advance, and the positional relationship of the two members does not change. In other words, Fig. 15 is a side explanatory view of the main part, and Fig. 16 is a front view for observing the direction of the arrow from the single-dot chain line H-H of Fig. 15 and showing the state after the log W is removed. That is, the configuration is as shown in Fig. 16. Reference numeral 81 is a second backing roll 'on the third shaft 83, spaced apart in the axial center line direction of the logs W which are rotated during cutting, and fixed to the third in the same structure as the first backing light 27 Axis 83. Reference numeral 85 is a third backing roll apos which is similarly fixed to the fourth axis 87 in the direction of the axis center line of the log W, and is similarly fixed to the fourth axis 87. As shown in Fig. 16, the second backing roll 81 and the third backing roll 85 have a shape and a space between the mutually adjacent rolls and the rolls on the other side of the other side. The first back rubbing light 81 and the third back rubbing roller 85 are the same as those of the first backing roller 27 of the above embodiment. -28 201119819 That is, although the two rollers 8 1 and 8 5 are not shown, they are rotatably held by bearings in the same support member as the first support table 17 (hereinafter referred to as "support member R"). The upper portion is rotatable by the driving of the motor 39, and one of the two rollers 81 and 85 has the same configuration as the annular member 29 for calculating the peripheral speed of the log W, the rotary encoder 35, and the like. On the other hand, the disk-shaped rotating body 111 | and the tool 205 which give the rotational force of the log W are not shown, but are provided on the planer holder 1 相同 1 as in the above embodiment. Therefore, from the cross section of the wood, the planer holder 1 〇 1, the second backing roll 8 1 and the third backing roll 8 5 are disposed in a state surrounding the log W. The support member R is controlled to move in accordance with the movement of the planer holder in the same manner as the first support base 17. In the above-described configuration, the planer holder and the support member R are oriented toward the log as described above, in the state φ in which the spindle W is held by the spindle 3 and rotated in the same manner as described above with reference to Fig. 1 . W moves, and the log W is cut by the cutter 105 in the same manner as in the above embodiment. At this time, the log W is in a columnar shape, and the second backing roll 81 and the third backing roll 85 are intermittently formed on the outer peripheral surface of the log W before the outer circumference of the log W is a part of the curve. Contact. Further, when the log W has a columnar shape, the second backing roll 8 1 and the third backing roll 85 are in continuous contact with the outer peripheral surface of the log W as shown in Fig. 15, with the log W Gradually, the position of the second backing roll 8 1 and the third backing roll 8 5 in contact with the log W will gradually approach each other -29-201119819. Then, the cutting is continued as in the above embodiment, and if it is detected that the diameter of the log w is a predetermined enthalpy, the spindle W is separated from the log W, and the log W is rotated by the disk-shaped rotating body 111 and the second backing. The light 81 and the third backing roll 85 are supported, and are rotated by the force from the disk-shaped rotating body 111, and the cutting is continued by the cutter 105. If the cutting is continued in this state, as shown in Fig. 17, the contact between the log W and the second backing roll 81 and the third backing roll 85 will change to a closer position, which can be The second backing roll 8 1 and the third backing roll 8 5 continue to be supported until the diameter of the log W becomes smaller, so that the yield can be improved. If it is desired to change the diameter of the log W to the desired minimum in the state of Fig. 7, the positional relationship of the second backing roll 81 and the third backing roll 85 and the number of diameters are set to The outer circumferential surfaces of the second backing roller 81 and the third backing roller 85 do not reach a number closer to the side of the cutter 10 than the perpendicular line passing through the center of rotation of the log W, that is, the single-dot chain line KK. 3) In the above-described embodiment and the modified example, if the diameter of the log W which is gradually reduced in diameter as the cutting progresses becomes a predetermined value, the spindle 3 is moved away from the log W, and cutting is continued, but the spindle may not be made. 3 left and continue cutting. In this case, the main shaft 3 is a well-known multi-spindle, for example, a large-diameter main shaft is provided on the outer side of the small-diameter main shaft, and a double-spindle which is reciprocally movable with respect to the wood cross-section of each of the logs W. When the diameter of the log W is large, the main spindle w is rotated by the two main axes of the large diameter and the small diameter of the double main shaft as in the above-described embodiment, and becomes large as the cutting log w becomes a small diameter. The main axis of the path leaves the log W and continues to cut. Of course, the log W cannot be cut until it becomes smaller than the diameter of the major axis of the small diameter, but as described above, by the first backing roll 27 and the first backing body 61, or the second backing roll 81 and Since the third backing roll 85 supports the log W, it is possible to prevent the log W from being deflected by the force received during cutting, and it is possible to obtain a veneer having a desired thickness. 4) In the above-described embodiment and modification, the cutting is started by the cutter 105 in a state where the log W is supported by the spindle 3 at the beginning. However, if the log W is roughly processed into a columnar shape in advance, the spindle 3 may not be used, and only the disk-shaped rotating body 1 1 1 , the first backing roll 27 and the first back support 61, or the first When the two backing rolls 81 and the third backing rolls 85 support the logs W, cutting is started. 5) In the above embodiments and modifications, when the logs W are cut, the planer holder 101, the first backing device 5, or the second backing roller 81, and the third backing roller 8 5 are oriented toward the log W. The center of rotation moves, but it is also possible to stand by at a certain position without moving the planer holder 1 〇1, and urge the first backing device 5, or the second backing roller 81, and the third backing roller 85 to face the same Move in direction. Conversely, the planer holder 101 can also be moved to allow the first buckling device 5, or the second backing roll 8 1 and the third backing roll 85 to stand by at a certain position. In this case, the moving distance of the member on the moving side with respect to the rotation of the log W may be twice as large as the moving distance -31 - 201119819 in the above embodiment. 6) In the above-described modification described with reference to FIGS. 15 to 16 , in order to reduce the resistance when the log W is rotated, the member that is in contact with the outer peripheral surface of the log W is, for example, the second backing roller 81 and the third backing support. A rotating body such as the roller 85 may be a flat body having a larger surface resistance. That is, for example, as shown in FIG. 18, the abutting member 8 7 is integrally formed with the second backing roll 8 1 and the third shaft 8 3 to constitute the second back support body 8 9 instead of the first figure. Three back support rolls 85. On the abutting member 87, as shown in the figure, the vicinity of the upper end portion is spaced apart along the axial center line direction of the third shaft 8.3 to form a plurality of notch portions so that the second backing roller 81 can enter. On the other hand, the upper end portion of the abutting member 87 other than the notch portion is in a state of entering between the adjacent rollers and the roller along the axial center line direction of the second backing roller 81. The abutting member 87 is provided with a tilting surface 87a that abuts against the outer peripheral surface of the log W. In this case, the rotation of the log W can be made by moving at least one of the side of the planer holder 110 and the second backing body 8.9 toward the direction of the log W. The second backing roll 8 1 and the inclined surface 87a continue to abut against the outer peripheral surface of the log W, and the log W is cut by a cutter. The period of the case where the spindle 3 that originally supports the log W is separated from the log W and the case where the log W is pre-machined into a substantially circular shape is -32-201119819, as long as the second backing roll shown in Fig. 15 is used. 81 and the third backing roll 8 5 are corresponding to each other in the same manner as in the case of cutting the log w. 7) In the above-described embodiment and modification, it is provided opposite to the disk-shaped rotating body 111. The first backing roll 27 and the first back support body 61' or the second back support roll 81 and the third back support roll 85, or the second back support body 89 at the position support the outer peripheral surface of the log W, but may also Further, other members such as a rotating body that is continuously supported by the outer peripheral surface of the log W are added. 8) In the above-described embodiments and modifications, the disk-shaped rotating body 1 is used as the rotary driving body, and in order to reduce the crack on the back side of the veneer caused by the cutting of the tool W, the tool is abutting the tool. In front of the 105, a blade tip 117 that pressurizes the outer peripheral surface of the log W is used. However, it is also possible to provide a function as a rotary drive body and a function as a tool tip lever in front of the cutter 105, for example, only the main portion is shown in Fig. 19, and is provided with an electric motor ( Instead of the above-described disc-shaped rotating body 111 and the blade tip shank 7, the rotating roller rod 91 is driven. In this case, in order to increase the rotational force transmitted to the logs W, irregularities may be formed on the outer peripheral surface of the roller bar 9 1 . 9) In the above-described embodiment, the following changes can be made. In the present modification, the two abutting members having the abutting faces that abut against the outer peripheral surface of the logs W are independently supported and movable. In the configuration shown in the first embodiment of the above-described embodiment, the main shaft 3 and the -33-201119819 member of the main shaft 3 and the planer base 10 1 on the right side of the main shaft 3 are similarly provided for making A first servo motor having an absolute rotary encoder that rotates the first male thread 丨〇3. Further, the first base 7' in the first buckling device 5 of the above embodiment is connected to the sixth servo motor 9, the fourth male screw 11, the first bearing 13, of the absolute rotary encoder (not shown), Female thread 15, the first support table 17' has two ends fixed to the horizontal second steel plate 17b of the two first support tables 17, the mounting unit 17c 'the second base 19, the first linear bearing 21, the bearing 23, the first The members of the one shaft 25, the first backing roller 27, the annular member 29, the first gear 31', the second gear 33', the rotary encoder 35, and the like are also disposed in the same state in the present modification. . The configuration of the present modification which is different from the above embodiment will be described below with reference to the drawings. Fig. 20 is a side elevational view showing the second buckling device 133 corresponding to the first buckling device 5 of Fig. 1 in the modified example. Fig. 21 is an explanatory view of the direction of the arrow viewed from the single-dot chain line L-L of Fig. 20. Fig. 22 is a plan explanatory view showing the second backing support 133 and the members associated therewith, when the direction of the arrow is viewed from the single-dot chain line M-M of Fig. 21. Fig. 23 is a partial cross-sectional explanatory view showing the direction of the arrow viewed from the single-dot chain line N-N of Fig. 22. Fig. 24 is an operation explanatory view showing a state in which the second back support 1 3 3 is raised from the state of Fig. 23 and the lift table 135 is in the uppermost position. Fig. 25 is a partial cross-sectional explanatory view of the arrow direction viewed from the single-dot chain line S-S of Fig. 21. Fig. 26 is an explanatory view showing the start of cutting of the logs W in the modified example. Fig. 2 is an explanatory view showing the completion of cutting of the logs W in the modified example. -34- 201119819 Symbol 1 3 3 is a plurality of second backing bodies defined by the fixing table 133c on the upper surface of the lifting table 135, which will be described later, with the first backing body 6 1 of the above-described embodiment. Each of the second back support bodies 133 is fixed to a notch portion formed on the upper end surface thereof by a sheet 1 3 3 a made of a material that is difficult to wear, and the surface is formed into a horizontal flat surface. The second back support 133 is as shown in Fig. 23, and the planer seat end surface 133b is formed to be perpendicular to the upper end surface 61a. The second back support body 133 is provided in the same manner as the first back hair of the above-described embodiment: in FIG. 2, it is possible to enter the first back support rolls 7 which are adjacent to each other in the same positional relationship as described above. Location and size. Reference numeral 135 is a lifting platform, and the second backing support is fixed to the upper portion. As shown in Fig. 2, the length is connected to the length corresponding to the fiber width of the cut log w. In the left and right end portions shown in Fig. 21 of the elevating table 135, the first connecting member 137 is only shown on the left side in Fig. 22, and the connecting member 137 is used to rotate the male thread 丨4 described later. The force of the birth movement is transmitted to the lifting platform 1 3 5 . In the end portion on the leaving side shown in Fig. 23 of each of the first connecting members 137, a female thread 13 9 which is vertically penetrated is formed, and in the first state, it is gradually inclined by 5 degrees toward the upper side with respect to the vertical direction. . The male thread 141 which is matched with the female thread 139 is inserted into each other, and is solidified, and is embedded in the upper end 101 side e body 61. Between the embodiments 133, the length of the first fixed upper main shaft 3 23 is fixed. The left-hand female thread is -35- 201119819 139°. At the lower end of each male thread 141, an eighth servo motor 145 fixed to the base 143 is connected, and the male thread 141 is based on a signal from a second controller to be described later. The eighth servo motors 145 can be synchronized with each other at a predetermined rotational speed to perform forward/reverse and stop. In the eighth servo motor 145, as will be described later, an absolute rotary encoder (not shown) for detecting the distance between the upper end surface of the second back support body 133 and the center of rotation of the main shaft 3 is provided. On the other hand, on the side of the main shaft 3 shown in Fig. 23 of each of the first connecting members 137, as shown in Figs. 21 and 22, the second connecting member 147 is fixedly disposed on the lifting table 135 and each of the first A connecting member 137. Reference numeral 149 is a pillar provided separately with respect to the outer end portions of the respective second connecting members 147 along the left-right direction of Fig. 21. In the state shown in Fig. 20, the surface 149a on the main shaft 3 side of each of the struts 149 is gradually inclined to the left by 5 degrees as it goes upward. As shown in Figs. 20 and 22, a fourth linear bearing 151 is provided on the surface 149a, and the sliding unit 151b and the second connecting member 147 are fixed. With the above configuration, each of the eighth servo motors 145 receives a control signal from the controller 159 as will be described later, and rotates in the manner as described above so that the male threads 1 4 1 are rotated forward. / Reverse and stop. The action of the male screw -36-201119819 pattern 1 3 9 inserted by each male thread 14 1 caused by the actuation of each male thread 14 1 causes the first connecting member 1 37 7 to move up and down. Further, the lifting and lowering of the first connecting member 137 is performed by the action of the fourth linear bearing 151, and the sliding unit 151b along the surface M9a of the 149 is parallel to the direction i, that is, the lifting table 13 5 In Fig. 23, the arrow is gradually inclined to the left by 5 degrees along the upward direction, and the upper and lower sides of the second back support 1 3 3 are arranged in a row manner. Fig. 23 is a view showing that the elevating table 135 is moved to the lowermost position in this state. In Fig. 23, the right side corner of the upper end surface of the second back support 1 3 3 a is, for example, about 30 mm, the rotation center of the main shaft 3 Directly below. On the other hand, Fig. 24 shows the state of φ at the lifting table 135. For convenience of explanation, the black circle Q is used to indicate the center of rotation, and the upper side angle of the sheet 1 3 3 a of the second backing body 1 3 3 is shown. The department is located directly below the center of rotation. In the state of Fig. 23, the distance from the upper end surface of the rotation of the main shaft 3 to the upper end surface of the main shaft 3 is in the form of a pattern, and in the present modification, the system is one side. The machinable original diameter in the case where the second back support 1 3 3 and the sheet 1 3 3 a are in contact with each other to perform cutting. - The lifting of the body ί 135 moves with the pillars ί. The direction shown, the lower movement and the stop, according to the position at the bottom, the left side of the sheet of 133 is located on the right side of the top end of the rotary end surface of the first axis 3 to the sheet as described later, with the log The maximum half of the outer wood-37-201119819 Of course, in the 23rd view, if the length of the sheet 133a in the left-right direction is made longer, the downward length of the male thread 141 is increased, so that the lifting platform 1 3 5 If the position shown is further lowered, the above maximum radius can be made larger. In the 20th and 21st drawings, the reference numeral 27 is the same as the above embodiment, and is provided with a plurality of first backing rolls. Further, only the left end portion 25a of the first shaft 25 will be described. As shown in Fig. 25, the motor 153 for driving the rotation of the first backing roller 27 at the same peripheral speed as that of the above embodiment is fixed. The lower surface of the second steel plate 17b. The third sprocket 155 is fixed to the rotating shaft 153a of the motor 153 by the same method as the above embodiment. Further, similarly to the above embodiment, the first sprocket 37 is fixed to the left end portion 25a of the first shaft 25. As shown in Fig. 25, the third chain 157 is hung on the two sprocket wheels 37, 155, and the power of the motor 153 is transmitted to the first backing roller 2 7, for rotation. As shown in Fig. 21, the motor 153 is also provided at the right end portion 25a of the first shaft 25, and is synchronized with the motor 153 on the left end portion 25a side of the first shaft 25 to make the first back support light 27 rotation " Further, as will be described later, the controller 159 is provided while being detected by the absolute rotary encoder so that the moving members are at the set positions while detecting the positions of the respective members, and Each servo motor sends an actuation signal. -38-201119819 In the above configuration, the configuration of the controller 159 is as follows. That is, as in the above embodiment, if the thickness T of the veneer is set in advance, a signal for rotating the first male screw 103 by the first servo motor is issued from the controller 1 59, and is rotated one revolution with respect to the main shaft 3, so that The planer holder 1 0 1 moves only a distance T toward the spindle 3 side. The position of the tool edge position of the tool 105 provided in the moving planer holder 101 and the center of rotation of the spindle 3 is detected by the absolute rotary encoder provided on the first male thread 103, and the information is obtained. Passed to controller 1 5 9. Further, the contact point P from the rotation center of the main shaft 3 to the first backing roller 27 is transmitted to the controller 1 59 by the absolute rotary encoders provided in the sixth servo motor 9 and the eighth servo motor 145, respectively. And information on the distances of the upper end faces of the sheets 1 3 3 a of the second back support 1 3 3 . Based on the above information, the controller 1 59 issues a signal to the sixth servo motor 9 and the eighth servo motor 145 to control the respective members to operate as described below. That is, even if the position of the cutting edge of the cutter 105 with respect to the center of rotation Q changes sequentially, it can be similar to the case of the ninth embodiment of the above-described embodiment, in the Archimedes spiral curve determined by the above T. (hereinafter, the same as the above-described embodiment, referred to as "curve"), and on the above-mentioned curve which is substantially half a circumference continuous in the rotation direction of the log W by the above-mentioned cutting edge, opposite to the above-mentioned tool edge with respect to the rotation center Q' On the side, the contact P of the first backing roll 27 continues to lie on the above curve, and the upper end face of the sheet 1 3 3 a of the second back support 1 3 3 continues to be located substantially directly below the center of rotation Q, -39 - 201119819 That is, 'the same position as the upper end surface 61a of the first back support body 61 of Fig. 9. In the above configuration, the cutting of the logs W is performed as follows. Initially, in the same manner as the above embodiment, the operator inputs the information of the thickness T of the veneer obtained by cutting the log W by the cutter 105 in advance, and the two logs W in the first figure are indicated by the double-dot chain line. A substantially central portion of the wood cross section is sandwiched between a pair of spindles 3. In this state, as in the above embodiment, the pair of main shafts 3 are rotated, and when the logs W start to rotate, the planer holder 101, the first backing rolls 27 and the second backing members 1 3 3 are urged. While maintaining the position on the above-mentioned curve, each of them moves to a position where each member does not touch the log W. Then, similarly to the above embodiment, if the operator sends an operation signal by manual operation to the controller 159 to rotate the main shaft 3, the planer holder 1 〇1, the first backing roller 2, and the first The two-back support 1 3 3 moves toward the center of rotation of the spindle 3, that is, the log W, while maintaining the position on the curve. As a result, in the same manner as in the above embodiment, the log W can be cut to obtain a veneer. When the cutting is continued, the logs W supported by the main shaft 3 are substantially cylindrical, and the single-plate Y which is continuously strip-shaped can be obtained. If the cutting is further continued, if the tool 105 is in contact with the spindle 3, then the controller 1 5 9 is -40-201119819. The hydraulic cylinder of the spindle 3 (not shown) A signal is sent to cause the spindle 3 to move to a standby position away from the log W. As a result, the log W is supported only by the disk-shaped rotating body 11 1 'the first backing roll 27 and the second backing body 133, and is rotated by the force from the disk-shaped rotating body 11 1 to continue borrowing Cutting is performed by the tool 1 〇5. The rotational speed of the log W in this case is the same as that of the above embodiment'. According to the tool nose position of the tool 1 0 5 obtained by the absolute rotary encoder provided on the first male screw 103 and the rotation center of the main shaft 3 The distance between each other and the number of revolutions per unit time of the annular member 29 that abuts against the outer peripheral surface of the log W is obtained by the controller 159. If the cutting is further continued, as shown in Fig. 27, the diameter of the log W becomes smaller, and as in the above embodiment, the second back support 1 3 3 will enter the first backings adjacent to each other. In the space of the roller 27, it is possible to continue the cutting without hindering each other. Therefore, the log w is continuously supported by the outer peripheral surface of the first backing roll 27 and the upper surface of the sheet 1 3 3 a of the second back support 1 3 3 until the cutting becomes a small diameter. Thereafter, the cutting is completed, and the operation for starting the next log cutting or the like is performed in the same manner as in the above embodiment. In the state shown in Fig. 23, on each of the first connecting members 137, the female screw 139 is gradually inclined to the left by 5 degrees as it goes upward. Therefore, as the cutting progresses, the diameter of the log W becomes smaller, and the second back support 1 3 3 is moved to the left side while rising in the second picture - 41 - 201119819. The reason for this movement is the same as that of the above embodiment. 1 〇) In the embodiment and the modified example described above, the planer holder and the abutting member are moved together toward the center of rotation of the log, and the log is used to cut the log. However, the square can be fixed at a certain position. And move the other side toward the above-mentioned center of rotation. While the present invention has been described in its preferred embodiments as described above, it is not intended to limit the invention, and may be modified and modified without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side explanatory view of an embodiment. Fig. 2 is an explanatory view of the direction of the arrow viewed from the single-dot chain line A-A of Fig. 1. Fig. 3 is a plan view showing the direction of the arrow viewed from the single-dot chain line B-B of Fig. 2. Fig. 4 is a side cross-sectional side view showing the direction of the arrow viewed from the single-dot chain line C-C of Fig. 2. Fig. 5 is a partial cross-sectional side view showing the direction of the arrow viewed from the single-dot chain line D-D of Fig. 2. Fig. 6 is a side cross-sectional side view showing the direction of the arrow viewed from the single-dot chain line E-E of Fig. 2. Fig. 7 is a side cross-sectional explanatory view of the section -42 - 201119819 in the direction of the arrow viewed from the single-dot chain line F-F of Fig. 2. Fig. 8 is a side elevational view, partly in section, of the single-dot chain line of Fig. 2. Fig. 9 is a diagram showing the trajectory of the log when the log is viewed from the cross-section side of the wood at the time of cutting, and the main figure 1 is a description of the cutting shape of the log W. Fig. 12 is a view showing a cutting shape of the log W. Fig. 13 is a view showing a cutting shape of the log W. Fig. 14 is a log w diagram of Fig. 13. Fig. 15 is a view showing a main part of a modified example. Fig. 16 is a view showing a single-point chain I from Fig. 5, showing a front side of a log W state. Fig. 17 is a view showing a cutting shape of a log W. Fig. 1 is a side elevational view of a modified example. Fig. 20 is a side elevational view of the backing device 133 of the first embodiment. Fig. 21 is an illustration of a single-dot chain line from Fig. 20. Fig. 22 is a view showing the second back support body 133 from the single-dot chain line of the 21st and the log rotation of the tool in the direction of the G-G viewing arrow. The action diagram of the state. The action diagram of the state. The action diagram of the state. The action diagram of the state. A partial enlargement of the nearby description of the face. Spring H-H to watch the direction of the arrow. The action diagram of the state. The first buckling device 5 is equivalent to the L-L viewing arrow direction of the M-M viewing arrow direction, the plane description of each component -43-201119819. Fig. 23 is a partial cross-sectional explanatory view of the arrow direction viewed from the single-dot chain line N-N of Fig. 22. Fig. 24 is an operation explanatory view showing a state from the state of Fig. 23 to the state in which the second backing body 133 is at the uppermost position. Fig. 25 is a partial cross-sectional explanatory view showing the direction of the arrow from the single-dot chain line S-S of Fig. 21. Fig. 26 is an explanatory view showing the start of cutting of the log W in the modified example. Fig. 27 is an explanatory view showing the end of cutting of the log W in the modified example. Fig. 28 is a side explanatory view of a conventional apparatus. Fig. 29 is an explanatory view of the operation of the conventional apparatus. [Description of main component symbols] 1 : Planer holder 3: Spindle 5: First backing device 7: First base 17: First support table 27: First backing roll 49: Second support table 6 1 : Back support Body 67: Second chain -44- 201119819 9 1 : Light bar 1 〇 1 : Planer seat 1 1 1 : Disc-shaped rotating body 1 3 1 : Second buckling device 1 3 3 : Second backing body 135: Lifting table 1 3 9 : female thread | 1 4 1 : male thread 143 : abutment 1 4 9 : pillar
-45-45